Security Upgrade - Google Identity Services migrations

The app currently uses the legacy Google Sign-In web solution. authentication support for the Google Sign-In JavaScript platform library will no longer be supported after March 31, 2023 hence upgrade is required.

migrate to the new Google Identity Services by following the migration guide.

@caravinci feel free to add description

[justincorrigible]

Link to the cloud console: https://console.cloud.google.com/apis/credentials