[Feature request] Add an option to untrash an e-mail

[marmistrz]

Expected behavior

After moving the message to trash, there should be an easy way to undo it

Actual behavior

The only way is to use move after entering the trash folder, which often fails because the folder is not synchronized with the remote one. (i.e. no way to untrash when being offline)

Environment

K-9 Mail version: 5.600
Android version: LOS 14.1
Account type: IMAP

[cketti]

See #624