Use tsconfig instead of jsconfig

sites/svelte.dev/vite.config.js

@@ -1,54 +1,63 @@
-import * as fs from 'fs';
-import { sveltekit } from '@sveltejs/kit/vite';
-import { imagetools } from 'vite-imagetools';
+import * as fs from "fs";
+import { sveltekit } from "@sveltejs/kit/vite";
+import { imagetools } from "vite-imagetools";
 
 process.env.VITE_API_BASE = process.env.DOCS_PREVIEW
-	? 'http://localhost:8787'
-	: 'https://api.svelte.dev';
+	? "http://localhost:8787"
+	: "https://api.svelte.dev";
 
+/**
+ * @param {string[]} ext
+ * @returns {import('vite').Plugin}
+ */
 function raw(ext) {
 	return {
-		name: 'vite-plugin-raw',
+		name: "vite-plugin-raw",
 		transform(_, id) {
 			if (ext.some((e) => id.endsWith(e))) {
 				const buffer = fs.readFileSync(id);
 				return { code: `export default ${JSON.stringify(buffer)}`, map: null };
 			}
-		}
+		},
 	};
 }
 
 /** @type {import('vite').UserConfig} */
 const config = {
-	logLevel: 'info',
-	plugins: [raw(['.ttf']), imagetools(), sveltekit()],
+	logLevel: "info",
+	plugins: [raw([".ttf"]), imagetools(), sveltekit()],
+	esbuild: {
+		loader: {
+			html: "text",
+		},
+	},
 	optimizeDeps: {
 		include: [
-			'codemirror',
-			'codemirror/mode/javascript/javascript.js',
-			'codemirror/mode/handlebars/handlebars.js',
-			'codemirror/mode/htmlmixed/htmlmixed.js',
-			'codemirror/mode/xml/xml.js',
-			'codemirror/mode/css/css.js',
-			'codemirror/mode/markdown/markdown.js',
-			'codemirror/addon/edit/closebrackets.js',
-			'codemirror/addon/edit/closetag.js',
-			'codemirror/addon/edit/continuelist.js',
-			'codemirror/addon/comment/comment.js',
-			'codemirror/addon/fold/foldcode.js',
-			'codemirror/addon/fold/foldgutter.js',
-			'codemirror/addon/fold/brace-fold.js',
-			'codemirror/addon/fold/xml-fold.js',
-			'codemirror/addon/fold/indent-fold.js',
-			'codemirror/addon/fold/markdown-fold.js',
-			'codemirror/addon/fold/comment-fold.js'
-		]
+			"codemirror",
+			"codemirror/mode/javascript/javascript.js",
+			"codemirror/mode/handlebars/handlebars.js",
+			"codemirror/mode/htmlmixed/htmlmixed.js",
+			"codemirror/mode/xml/xml.js",
+			"codemirror/mode/css/css.js",
+			"codemirror/mode/markdown/markdown.js",
+			"codemirror/addon/edit/closebrackets.js",
+			"codemirror/addon/edit/closetag.js",
+			"codemirror/addon/edit/continuelist.js",
+			"codemirror/addon/comment/comment.js",
+			"codemirror/addon/fold/foldcode.js",
+			"codemirror/addon/fold/foldgutter.js",
+			"codemirror/addon/fold/brace-fold.js",
+			"codemirror/addon/fold/xml-fold.js",
+			"codemirror/addon/fold/indent-fold.js",
+			"codemirror/addon/fold/markdown-fold.js",
+			"codemirror/addon/fold/comment-fold.js",
+		],
 	},
 	server: {
 		fs: {
-			strict: false
-		}
-	}
+			strict: false,
+		},
+	},
 };
 
 export default config;

tsconfig.json

@@ -1,8 +1,9 @@
 {
-	"include": ["src/**/*.{js,ts}"],
-	"exclude": ["sites/**/*"],
+	"include": [],
 
 	"compilerOptions": {
+		"rootDir": "src",
+
 		// target node v8+ (https://node.green/)
 		// the only missing feature is Array.prototype.values
 		"lib": ["es2017"],