Fix login prompt after first connection to Google Drive

1. Set up Nuxeo Live Connect for Google Drive per documentation
2. Attempt to upload an asset from Google Drive OR navigate to User Settings > Cloud Services and attempt to Connect to Google Drive (pictured in attached screenshots)
3. Select Google account to connect
4. Allow OAuth client access to Google Drive account
5. A login screen for Nuxeo appears. Following input of credentials, account is connected.

Expected: account connection immediately following step 4, without prompt to login.

Reproduced in Nuxeo LTS 2021 (11.4) Docker image running:

• nuxeo-web-ui-3.0.2
• nuxeo-liveconnect-2021.1.19