Fixed mpv script and enabled icons to GTK menus

gnome/.config/gtk-3.0/settings.ini

@@ -1,3 +1,6 @@
 [Settings]
 gtk-application-prefer-dark-theme=1
 gtk-theme-name=Adwaita-pink-dark
+gtk-button-images=0
+gtk-menu-images=1
+

gnome/.config/gtk-4.0/settings.ini

@@ -1,3 +1,6 @@
 [Settings]
 gtk-application-prefer-dark-theme=1
 gtk-theme-name=Adwaita-pink-dark
+gtk-button-images=0
+gtk-menu-images=1
+

polybar/.config/polybar/scripts/mpv.sh

@@ -22,7 +22,9 @@ time_to_human(){
 
 OUTPUT=""
 
-if pidof mpv > /dev/null; then
+pgrep -u "$UID" -x mpv > /dev/null
+
+if [ $? -eq 0 ]; then
 
     # The "16) Connection refused" error happens at the row below
     # See: https://github.com/deterenkelt/Nadeshiko/wiki/Known-issues-for-Nadeshiko%E2%80%91mpv#----connection-refused