Bump @angular/router from 20.3.16 to 21.1.0 in /web_embedding/ng-flutter (#2774)

Bumps [@angular/router](https://github.com/angular/angular/tree/HEAD/packages/router) from 20.3.16 to 21.1.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/angular/angular/releases"><code>@​angular/router</code>'s releases</a>.</em></p>
<blockquote>
<h2>VSCode Extension: 21.1.0</h2>
<h2>21.1.0 (2026-01-12)</h2>
<ul>
<li>fix(vscode-extension): convert enum member kind in completions correctly (<a href="50674f8c28">50674f8c28</a>)</li>
</ul>
<h2>21.1.0</h2>
<h3>common</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="d8790972be"><img src="https://img.shields.io/badge/d8790972be-feat-blue" alt="feat - d8790972be" /></a></td>
<td>Add custom transformations for Cloudflare and Cloudinary image loaders</td>
</tr>
<tr>
<td><a href="a6b8cb68af"><img src="https://img.shields.io/badge/a6b8cb68af-feat-blue" alt="feat - a6b8cb68af" /></a></td>
<td>support custom transformations in ImageKit and Imgix loaders</td>
</tr>
</tbody>
</table>
<h3>compiler</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="640693da8e"><img src="https://img.shields.io/badge/640693da8e-feat-blue" alt="feat - 640693da8e" /></a></td>
<td>Add support for multiple swich cases matching</td>
</tr>
<tr>
<td><a href="0ad3adc7c6"><img src="https://img.shields.io/badge/0ad3adc7c6-fix-green" alt="fix - 0ad3adc7c6" /></a></td>
<td>Support empty cases</td>
</tr>
</tbody>
</table>
<h3>core</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="99ad18a4ee"><img src="https://img.shields.io/badge/99ad18a4ee-feat-blue" alt="feat - 99ad18a4ee" /></a></td>
<td>Add stability debugging utility</td>
</tr>
<tr>
<td><a href="a0dfa5fa86"><img src="https://img.shields.io/badge/a0dfa5fa86-feat-blue" alt="feat - a0dfa5fa86" /></a></td>
<td>support rest arguments in function calls</td>
</tr>
<tr>
<td><a href="6e18fa8bc9"><img src="https://img.shields.io/badge/6e18fa8bc9-feat-blue" alt="feat - 6e18fa8bc9" /></a></td>
<td>support spread elements in array literals</td>
</tr>
<tr>
<td><a href="e407280ab5"><img src="https://img.shields.io/badge/e407280ab5-feat-blue" alt="feat - e407280ab5" /></a></td>
<td>support spread expressions in object literals</td>
</tr>
<tr>
<td><a href="06be8034bb"><img src="https://img.shields.io/badge/06be8034bb-fix-green" alt="fix - 06be8034bb" /></a></td>
<td>Microtask scheduling should be used after any application synchronization</td>
</tr>
<tr>
<td><a href="b4f584cf42"><img src="https://img.shields.io/badge/b4f584cf42-fix-green" alt="fix - b4f584cf42" /></a></td>
<td>return <code>StaticProvider</code> for <code>providePlatformInitializer</code></td>
</tr>
</tbody>
</table>
<h3>forms</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="1ea5c97703"><img src="https://img.shields.io/badge/1ea5c97703-feat-blue" alt="feat - 1ea5c97703" /></a></td>
<td>allow focusing bound control from field state</td>
</tr>
</tbody>
</table>
<h3>platform-browser</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="ec9dc94cee"><img src="https://img.shields.io/badge/ec9dc94cee-feat-blue" alt="feat - ec9dc94cee" /></a></td>
<td>add <code>context</code> to <code>createApplication</code></td>
</tr>
<tr>
<td><a href="ab67988d2e"><img src="https://img.shields.io/badge/ab67988d2e-feat-blue" alt="feat - ab67988d2e" /></a></td>
<td>resolve JIT resources in <code>createApplication</code></td>
</tr>
</tbody>
</table>
<h3>router</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="5edceffd04"><img src="https://img.shields.io/badge/5edceffd04-feat-blue" alt="feat - 5edceffd04" /></a></td>
<td>add controls for route cleanup</td>
</tr>
<tr>
<td><a href="a03c82564d"><img src="https://img.shields.io/badge/a03c82564d-feat-blue" alt="feat - a03c82564d" /></a></td>
<td>Add scroll behavior controls on router navigation</td>
</tr>
<tr>
<td><a href="e44839b016"><img src="https://img.shields.io/badge/e44839b016-feat-blue" alt="feat - e44839b016" /></a></td>
<td>Add standalone function to create a comptued for isActive</td>
</tr>
<tr>
<td><a href="c25d749d85"><img src="https://img.shields.io/badge/c25d749d85-feat-blue" alt="feat - c25d749d85" /></a></td>
<td>Execute RunGuardsAndResolvers function in injection context</td>
</tr>
<tr>
<td><a href="1c00ab42f8"><img src="https://img.shields.io/badge/1c00ab42f8-feat-blue" alt="feat - 1c00ab42f8" /></a></td>
<td>extend paramters of RedirectFunction to include paramMap and queryParamMap</td>
</tr>
<tr>
<td><a href="7003e8d241"><img src="https://img.shields.io/badge/7003e8d241-feat-blue" alt="feat - 7003e8d241" /></a></td>
<td>Publish Router's integration with platform Navigation API as experimental</td>
</tr>
<tr>
<td><a href="c84d372778"><img src="https://img.shields.io/badge/c84d372778-feat-blue" alt="feat - c84d372778" /></a></td>
<td>Support wildcard params with segments trailing (<a href="https://github.com/angular/angular/tree/HEAD/packages/router/issues/64737">#64737</a>)</td>
</tr>
</tbody>
</table>
<h3>upgrade</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="75fe8f8af9"><img src="https://img.shields.io/badge/75fe8f8af9-refactor-yellow" alt="refactor - 75fe8f8af9" /></a></td>
<td>deprecate <code>VERSION</code> export</td>
</tr>
</tbody>
</table>
<h2>Deprecations</h2>
<h3>upgrade</h3>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/angular/angular/blob/main/CHANGELOG.md"><code>@​angular/router</code>'s changelog</a>.</em></p>
<blockquote>
<h1>21.1.0 (2026-01-14)</h1>
<h2>Deprecations</h2>
<h3>upgrade</h3>
<ul>
<li><code>VERSION</code> from <code>@angular/upgrade</code> is deprecated. Please use the entry from <code>@angular/upgrade/static</code> instead.</li>
</ul>
<h3>common</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="d8790972be">d8790972be</a></td>
<td>feat</td>
<td>Add custom transformations for Cloudflare and Cloudinary image loaders</td>
</tr>
<tr>
<td><a href="a6b8cb68af">a6b8cb68af</a></td>
<td>feat</td>
<td>support custom transformations in ImageKit and Imgix loaders</td>
</tr>
</tbody>
</table>
<h3>compiler</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="640693da8e">640693da8e</a></td>
<td>feat</td>
<td>Add support for multiple swich cases matching</td>
</tr>
<tr>
<td><a href="0ad3adc7c6">0ad3adc7c6</a></td>
<td>fix</td>
<td>Support empty cases</td>
</tr>
</tbody>
</table>
<h3>core</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="99ad18a4ee">99ad18a4ee</a></td>
<td>feat</td>
<td>Add stability debugging utility</td>
</tr>
<tr>
<td><a href="a0dfa5fa86">a0dfa5fa86</a></td>
<td>feat</td>
<td>support rest arguments in function calls</td>
</tr>
<tr>
<td><a href="6e18fa8bc9">6e18fa8bc9</a></td>
<td>feat</td>
<td>support spread elements in array literals</td>
</tr>
<tr>
<td><a href="e407280ab5">e407280ab5</a></td>
<td>feat</td>
<td>support spread expressions in object literals</td>
</tr>
<tr>
<td><a href="06be8034bb">06be8034bb</a></td>
<td>fix</td>
<td>Microtask scheduling should be used after any application synchronization</td>
</tr>
<tr>
<td><a href="b4f584cf42">b4f584cf42</a></td>
<td>fix</td>
<td>return <code>StaticProvider</code> for <code>providePlatformInitializer</code></td>
</tr>
</tbody>
</table>
<h3>forms</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="1ea5c97703">1ea5c97703</a></td>
<td>feat</td>
<td>allow focusing bound control from field state</td>
</tr>
</tbody>
</table>
<h3>platform-browser</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="ec9dc94cee">ec9dc94cee</a></td>
<td>feat</td>
<td>add <code>context</code> to <code>createApplication</code></td>
</tr>
<tr>
<td><a href="ab67988d2e">ab67988d2e</a></td>
<td>feat</td>
<td>resolve JIT resources in <code>createApplication</code></td>
</tr>
</tbody>
</table>
<h3>router</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="5edceffd04">5edceffd04</a></td>
<td>feat</td>
<td>add controls for route cleanup</td>
</tr>
<tr>
<td><a href="a03c82564d">a03c82564d</a></td>
<td>feat</td>
<td>Add scroll behavior controls on router navigation</td>
</tr>
<tr>
<td><a href="e44839b016">e44839b016</a></td>
<td>feat</td>
<td>Add standalone function to create a comptued for isActive</td>
</tr>
<tr>
<td><a href="c25d749d85">c25d749d85</a></td>
<td>feat</td>
<td>Execute RunGuardsAndResolvers function in injection context</td>
</tr>
<tr>
<td><a href="1c00ab42f8">1c00ab42f8</a></td>
<td>feat</td>
<td>extend paramters of RedirectFunction to include paramMap and queryParamMap</td>
</tr>
<tr>
<td><a href="7003e8d241">7003e8d241</a></td>
<td>feat</td>
<td>Publish Router's integration with platform Navigation API as experimental</td>
</tr>
<tr>
<td><a href="c84d372778">c84d372778</a></td>
<td>feat</td>
<td>Support wildcard params with segments trailing (<a href="https://redirect.github.com/angular/angular/pull/64737">#64737</a>)</td>
</tr>
</tbody>
</table>
<h3>upgrade</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="75fe8f8af9">75fe8f8af9</a></td>
<td>refactor</td>
<td>deprecate <code>VERSION</code> export</td>
</tr>
</tbody>
</table>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="b1c68e66a7"><code>b1c68e6</code></a> docs: update examples to use <code>isActive</code> instead of deprecated `Router.isActiv...</li>
<li><a href="a2b9429992"><code>a2b9429</code></a> Revert &quot;feat(router): add trailingSlash config option&quot;</li>
<li><a href="12fccc5e99"><code>12fccc5</code></a> feat(router): add trailingSlash config option</li>
<li><a href="7003e8d241"><code>7003e8d</code></a> feat(router): Publish Router's integration with platform Navigation API as ex...</li>
<li><a href="9e043decaf"><code>9e043de</code></a> fix(router): handle errors from view transition <code>updateCallbackDone</code> promise</li>
<li><a href="bcef77d950"><code>bcef77d</code></a> fix(router): Fix RouterLink href not updating with <code>queryParamsHandling</code></li>
<li><a href="1c00ab42f8"><code>1c00ab4</code></a> feat(router): extend paramters of RedirectFunction to include paramMap and qu...</li>
<li><a href="97fd1de0ac"><code>97fd1de</code></a> Revert &quot;refactor(router): Add support for precommitHandler in Navigation inte...</li>
<li><a href="397dbc4c37"><code>397dbc4</code></a> Revert &quot;refactor(router): Retain original navigateEvent across redirects&quot;</li>
<li><a href="e44839b016"><code>e44839b</code></a> feat(router): Add standalone function to create a comptued for isActive</li>
<li>Additional commits viewable in <a href="https://github.com/angular/angular/commits/v21.1.0/packages/router">compare view</a></li>
</ul>
</details>
<br />

[![Dependabot compatibility score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=@angular/router&package-manager=npm_and_yarn&previous-version=20.3.16&new-version=21.1.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

</details>

web_embedding/ng-flutter/package.json

@@ -20,7 +20,7 @@
     "@angular/material": "^20.1.0",
     "@angular/platform-browser": "^20.0.3",
     "@angular/platform-browser-dynamic": "^20.1.0",
-    "@angular/router": "^20.0.3",
+    "@angular/router": "^21.1.0",
     "rxjs": "~7.8.1",
     "tslib": "^2.6.2",
     "zone.js": "~0.15.0"