Revert "Unify workspace dropdowns; Update layouts (#458)"

This reverts commit 4bc8448a1d.

apps/web/app/auth/callback/route.ts

@@ -0,0 +1,18 @@
+import { redirect } from 'next/navigation';
+import type { NextRequest } from 'next/server';
+
+import { createAuthCallbackService } from '@kit/supabase/auth';
+import { getSupabaseServerClient } from '@kit/supabase/server-client';
+
+import pathsConfig from '~/config/paths.config';
+
+export async function GET(request: NextRequest) {
+  const service = createAuthCallbackService(getSupabaseServerClient());
+
+  const { nextPath } = await service.exchangeCodeForSession(request, {
+    joinTeamPath: pathsConfig.app.joinTeam,
+    redirectPath: pathsConfig.app.home,
+  });
+
+  return redirect(nextPath);
+}