When the user starts editing the text label, the way out is to use the
(virtual) keyboards 'enter' or 'done' button.
We mark this button as disabled while editing to avoid weird situation.
This also works around the application completely hanging in Qt651 on
the phone. Hanging as in: Android suggests it to be killed.
This brings the new 'privacy mode' to use the standard widgets
and make the UX more smooth.
The swiping between pages / wallets is more visually satisfying.
We update the sync label to have a live counter of how long ago
the last block came in. (both front-ends)
On mobile we should not just show a text edit on an otherwise
labels-only screen, because the edit takes focus and opens the
on-screen keyboard. Which makes the amount of usable space
significantly less.
So make the editing user-triggered.