Migrate to a monorepo structure (#2909)

packages/twenty-front/src/modules/auth/graphql/queries/checkUserExists.ts

@@ -0,0 +1,9 @@
+import { gql } from '@apollo/client';
+
+export const CHECK_USER_EXISTS = gql`
+  query CheckUserExists($email: String!) {
+    checkUserExists(email: $email) {
+      exists
+    }
+  }
+`;