fix: add hint popover (#16581)

* fix: add hint popover

* changeset

---------

Co-authored-by: Rich Harris <hello@rich-harris.dev>

.changeset/metal-months-fail.md

@@ -0,0 +1,5 @@
+---
+"svelte": patch
+---
+
+fix: add `hint` as a possible value for `popover` attribute

packages/svelte/elements.d.ts

@@ -781,7 +781,7 @@ export interface HTMLAttributes<T extends EventTarget> extends AriaAttributes, D
 	title?: string | undefined | null;
 	translate?: 'yes' | 'no' | '' | undefined | null;
 	inert?: boolean | undefined | null;
-	popover?: 'auto' | 'manual' | '' | undefined | null;
+	popover?: 'auto' | 'manual' | 'hint' | '' | undefined | null;
 	writingsuggestions?: Booleanish | undefined | null;
 
 	// Unknown