The replacement keys are:
^J - toggle du mode
^Y - quit
The change is done because ^S, ^Q keybinds are lost in the following case:
- start nnn
- navigate to a different directory
- spawn a shell
- exit the shell
The issue happens only with the 'special' keybinds like ^S, ^Q, ^Z... which get
their original shell interpretation back.
So we are replacing these 2 keybinds with 2 'non-special' combinations.