chore: add documentation for svelte components

src/routes/Page.svelte

@@ -1,4 +1,13 @@
 <script>
+/**
+ * Page Component
+ *
+ * Main page route component. This is the default route that users see when
+ * accessing the application. Currently displays a welcome message.
+ *
+ * Note: This is a placeholder component. Replace with actual application content
+ * as the font comparison and filtering features are implemented.
+ */
 </script>
 
 <h1>Welcome to Svelte + Vite</h1>