chore(frontend): changed source code to src folder from root

frontend/src/pages/vercel.tsx

@@ -0,0 +1,46 @@
+import { useEffect } from 'react';
+import { useRouter } from 'next/router';
+import queryString from 'query-string';
+
+import AuthorizeIntegration from './api/integrations/authorizeIntegration';
+
+export default function Vercel() {
+  const router = useRouter();
+  const parsedUrl = queryString.parse(router.asPath.split('?')[1]);
+  const code = parsedUrl.code;
+  const state = parsedUrl.state;
+
+  /**
+   * Here we forward to the default workspace if a user opens this url
+   */
+  // eslint-disable-next-line react-hooks/exhaustive-deps
+  useEffect(() => {
+    (async () => {
+      try {
+        // type check
+        if (!code) throw new Error('Code not found');
+
+        if (state === localStorage.getItem('latestCSRFToken')) {
+          localStorage.removeItem('latestCSRFToken');
+
+          await AuthorizeIntegration({
+            workspaceId: localStorage.getItem('projectData.id') as string,
+            code: code as string,
+            integration: 'vercel',
+          });
+
+          router.push(
+            '/integrations/' + localStorage.getItem('projectData.id')
+          );
+        }
+      } catch (err) {
+        console.error('Vercel integration error: ', err);
+      }
+    })();
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, []);
+
+  return <div></div>;
+}
+
+Vercel.requireAuth = true;