obs: uninstall: skip apt purge if obs command not found

apps/OBS Studio/uninstall

@@ -9,7 +9,10 @@ function error {
 
 "${DIRECTORY}/purge-installed" "$(dirname "$0")" || exit 1
 
-sudo apt -y purge obs libfdk-aac2 libfdk-aac-dev || error "APT failed to purge OBS!"
+if command -v obs >/dev/null ;then
+  "${DIRECTORY}/api" apt_lock_wait
+  sudo apt -y purge obs libfdk-aac2 libfdk-aac-dev || error "APT failed to purge OBS!"
   
-sudo rm -f /usr/bin/obs
+  sudo rm -f /usr/bin/obs
-sudo rm -f /usr/bin/obs-exec
+  sudo rm -f /usr/bin/obs-exec
+fi