Use power button to open omarchy-menu system (#769)

* Use power button to open omarchy-menu system

* Added migration script

* setsid so it doesn't exit with the terminal

* Spacing

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Co-authored-by: David Heinemeier Hansson <david@hey.com>

install.sh

@@ -75,6 +75,7 @@ source $OMARCHY_INSTALL/config/timezones.sh
 source $OMARCHY_INSTALL/config/login.sh
 source $OMARCHY_INSTALL/config/nvidia.sh
 source $OMARCHY_INSTALL/config/increase-sudo-tries.sh
+source $OMARCHY_INSTALL/config/ignore-power-button.sh
 
 # Development
 source $OMARCHY_INSTALL/development/terminal.sh