feat: refactor & redesign parts of UI

server/api/v1/collection/default/index.get.ts

@@ -0,0 +1,14 @@
+import userLibraryManager from "~/server/internal/userlibrary";
+
+export default defineEventHandler(async (h3) => {
+  const userId = await h3.context.session.getUserId(h3);
+  if (!userId)
+    throw createError({
+      statusCode: 403,
+      statusMessage: "Requires authentication",
+    });
+
+  const collection = await userLibraryManager.fetchLibrary(userId);
+
+  return collection;
+});