Fixed memory leak for brackets removal

source/libublsettingsui-gtk3.c

@@ -225,7 +225,9 @@ struct loaded_config *yon_config_convert_parameter(config_str parsed, int size){
     for (int i=0;i<size;i++){
         char *value = yon_char_new(parsed[i]);
         char *key = yon_char_divide_search(value,"=",-1);
-        yon_char_remove_brackets(value);
+        if (!yon_char_is_empty(value)){
+            yon_char_remove_brackets(value);
+        }
         if (!loaded){
             loaded = (struct loaded_config*)malloc(sizeof(struct loaded_config));
             loaded->key=key;