fix(system): enable uwsm and fix session detection to allow VM login

- Enable programs.uwsm for session management.
- Improve SDDM theme session detection logic to be case-insensitive and more robust.
- Perform a global cleanup of 'Nnomarchy' and 'org.nnomarchy' typos across all scripts and configurations.

bin/hardware/nomarchy-brightness-display

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # Adjust brightness on the most likely display device.
-# Usage: nnomarchy-brightness-display <step>
+# Usage: nomarchy-brightness-display <step>
 
 step="${1:-+5%}"
 
@@ -18,4 +18,4 @@ done
 brightnessctl -d "$device" set "$step" >/dev/null
 
 # Use SwayOSD to display the new brightness setting.
-nnomarchy-swayosd-brightness "$(brightnessctl -d "$device" -m | cut -d',' -f4 | tr -d '%')"
+nomarchy-swayosd-brightness "$(brightnessctl -d "$device" -m | cut -d',' -f4 | tr -d '%')"