Theme: Fix gtk2/3 comparison when whitespace is involved

neofetch

@@ -1500,6 +1500,10 @@ getstyle() {
         [ "$gtk2" == "off" ] && unset gtk2theme
         [ "$gtk3" == "off" ] && unset gtk3theme
 
+        # Trim whitespace
+        gtk2theme="$(trim "$gtk2theme")"
+        gtk3theme="$(trim "$gtk3theme")"
+
         # Format the string based on which themes exist
         if  [ "$gtk2theme" ] && [ "$gtk2theme" == "$gtk3theme" ]; then
             gtk3theme+=" [GTK2/3]"