[messaging-app] Make it easier to resend messages that can't be sent

From usability testing:
Testers expected the phone to provide a resent option or to automatically resend the message when the singal is back if a message is not sent successfully

Testers received a 'no network' pop up, and the full text message stayed in the compose bar. As a result, they had to constantly check if the network is back, and then resend the message again. Phone is often used on the move, and network issue can be a common issue when such as on the train or around places where full of high buildings. It is important to design for these retrictions.

Proposed solution:
Until we have "Save as draft" support, I'd propose the following:
- If we detect No Network or No SIM Card and the user presses Send, directly add the message to the message thread, but mark it as failed (with the resend icon visible)
- Then pop up the dialog as we do today

This way, the message is part of the history and the user can resend whenever is convenient without losing their message.
Also, eventually when we have auto resend these messages will be in the queue.