implement trollboard UI (#1301)

* implement trollboard UI

* remove unneeded code

* add link to user

* user link in leaderboard

website/src/pages/api/admin/trollboard.ts

@@ -0,0 +1,13 @@
+import { withRole } from "src/lib/auth";
+import { createApiClient } from "src/lib/oasst_client_factory";
+import { TrollboardTimeFrame } from "src/types/Trollboard";
+
+export default withRole("admin", async (req, res, token) => {
+  const client = await createApiClient(token);
+
+  const trollboard = await client.fetch_trollboard(req.query.time_frame as TrollboardTimeFrame, {
+    limit: req.query.limit as unknown as number,
+  });
+
+  return res.status(200).json(trollboard);
+});