- The composer only enables its scroller once the text is taller than the
seven-line max, so it no longer flashes on every growth step.
- The composer re-asserts first responder only when canStealFocus is true;
it is off while a modal field or the sync overlay has the keyboard, so
typing in the edit dialog, search and sync fields no longer bounces back.
- The edit dialog is a ComposerView now: Return saves, Shift+Return inserts
a newline, Esc cancels, and paste uses the same path as the composer.
- Shift+Return never actually worked: returning false from doCommandBy does
not fall through to the default newline insertion, so the event died. The
newline is inserted explicitly and the Shift state comes from the keyDown.
TZGyn
a75d6fdf41