Removes the MissingCredentialsWarning component and replaces with logic directly in DailyBackupStatus.
Adds credentials warnings to DailyBackupStatus
Adds credentials warnings to ActivityCard when credentials are not present
Fixes getDoesRewindNeedCredentials() selector to actually return a valid status
Testing instructions
Remove credentials from a working test site. Check DailyBackupStatus as well as ActivityCards to ensure that the warnings show as appropriate, lead to the proper settings page, do not cause any console errors, and look good per the designs.
Unfortunately, no screenshots were provided by the developer.