Bump frontend dependencies to Svelte 5 (#3648)

* Add more recommended VS Code default configs

* Upgrade frontend dependencies including Svelte 5

* Fix derived_references_self runtime error

* Fix lint warnings

frontend/eslint.config.js

@@ -32,9 +32,6 @@ export default defineConfig([
 			"import/resolver": { typescript: true, node: true },
 		},
 		languageOptions: {
-			parserOptions: {
-				project: "./tsconfig.json",
-			},
 			globals: {
 				...globals.browser,
 				...globals.node,