Include options in the configuration to change which function keys to use for shutdown and reboot.
Fix config.map_len size in src/config.c.
Add missing defaults in config_defaults() in src/config.c.
* added german translation
* Replaced umlauts in german translations
Replaced umlauts in german translations with alternative spelling method to avoid any encoding problems etc.
* updated translation
Co-authored-by: Leif G <46281254+4ctiv@users.noreply.github.com>