[Feature suggestion] Option to render remote contents with user consent #2773

Description: A FlowCrypt Android app user has expressed interest in a feature that allows loading remote content in their emails - Ideally, they might be looking for an option which can be set whether to render remote contents (which would be disabled by default).

Reference:
https://mail.google.com/mail/u/human@flowcrypt.com/#inbox/FMfcgzQVxHkmPbQvXrXLvnmlLKnjzZlf
https://mail.google.com/mail/u/human@flowcrypt.com/#inbox/FMfcgzQXJGkWtsTFdjbCBhcZFVNzhTDt
https://mail.google.com/mail/u/human@flowcrypt.com/#inbox/FMfcgzQcpwkpbcxBdCHtfGQXFhMXqRpl