automated test for sending password message through FES web portal

[tomholub]

Difficult to test (explain why). It relates to background tasks. Tested manually.

We should file an issue to write test for this later. The functionality is not simple, and therefore easy to break during refactors or other development. Plus a customer relies on this. Having a test will help ensure it doesn't break.

Originally posted by @tomholub in #1629 (comment)

[DenBond7]

Fixed by #2579

https://github.com/FlowCrypt/flowcrypt-android/blob/master/FlowCrypt/src/androidTest/java/com/flowcrypt/email/ui/gmailapi/PasswordProtectedEncryptedComposeGmailApiFlow.kt#L99