We unify here the design across iOS and Android:
- The messages is over the full width.
- The time stamp is at the user name level.
- If several messages are sent in a row, clicking on a message (not the first one) will make it move slightly down to display the timestamp just above.
- On the right side of the timestamp we would have an "Edit" icon.
Handle event selection when user taps on text message view.
Note: The read receipts are still displayed by MatrixKit, they may overlap timestamp until Vector handle them correctly.
