make shift+enter work if shortcut for smart return is removed
make shift+enter work if shortcut for smart return is removed

BUG: 241994

hlamer/kate,sandsmark/kate,jfmcarreira/kate,jfmcarreira/kate,DickJ/kate,cmacq2/kate,hlamer/kate,DickJ/kate,hlamer/kate,hlamer/kate,cmacq2/kate,DickJ/kate,hlamer/kate,jfmcarreira/kate,hlamer/kate,DickJ/kate,sandsmark/kate,sandsmark/kate,hlamer/kate,hlamer/kate,cmacq2/kate,hlamer/kate,sandsmark/kate,hlamer/kate