The fix for QTBUG-35203 set the Alt+Right shortcut on the next
button, clobbering the Alt+N shortcut from parsing the text (similar
for other languages). Add a separate shortcut for Alt+Right since a
button may not have several shortcuts.
Amends 6714196f45.
Fixes: QTBUG-78604
Change-Id: I1367da739c35fbd011d11f850c9bc3915113c644
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>