Switch to xdg-terminal-exec

Solves the issue from ae10133b5e the right
way using the actual xdg-terminal-exec package and provides resillient
fallbacks no matter what the user might do.

This also removes the need to restart after changing terminals at all.

fixes #2198
fixes #2329
fixes #2673
fixes #1754

bin/omarchy-launch-editor

@@ -4,7 +4,7 @@ omarchy-cmd-present "$EDITOR" || EDITOR=nvim
 
 case "$EDITOR" in
 nvim | vim | nano | micro | hx | helix)
-  exec setsid uwsm-app -- "$TERMINAL" -e "$EDITOR" "$@"
+  exec setsid uwsm-app -- xdg-terminal-exec "$EDITOR" "$@"
   ;;
 *)
   exec setsid uwsm-app -- "$EDITOR" "$@"