chore: fix typo (#14513)

Author: Rich-Harris

packages/svelte/src/index.d.ts

@@ -38,7 +38,7 @@ type Properties<Props, Slots> = Props &
 /**
  * This was the base class for Svelte components in Svelte 4. Svelte 5+ components
  * are completely different under the hood. For typing, use `Component` instead.
- * To instantiate components, use `mount` instead`.
+ * To instantiate components, use `mount` instead.
  * See [migration guide](https://svelte.dev/docs/svelte/v5-migration-guide#Components-are-no-longer-classes) for more info.
  */
 export class SvelteComponent<

packages/svelte/types/index.d.ts

@@ -35,7 +35,7 @@ declare module 'svelte' {
 	/**
 	 * This was the base class for Svelte components in Svelte 4. Svelte 5+ components
 	 * are completely different under the hood. For typing, use `Component` instead.
-	 * To instantiate components, use `mount` instead`.
+	 * To instantiate components, use `mount` instead.
 	 * See [migration guide](https://svelte.dev/docs/svelte/v5-migration-guide#Components-are-no-longer-classes) for more info.
 	 */
 	export class SvelteComponent<