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.

modules/system/sddm.nix

@@ -22,4 +22,5 @@ in
 
   # Enable Hyprland system-level dependencies
   programs.hyprland.enable = true;
+  programs.uwsm.enable = true;
 }