Fixed packages checking if SyncDb doesn't exist

source/libublsettings-gtk3-packages.c

@@ -91,10 +91,11 @@ int yon_packages_init(){
 
 
 int yon_packages_check_exist(const char *package_name){
-    alpm_list_t *sync_db = alpm_get_syncdbs(packages_struct.packages_handle);
+    alpm_list_t *sync_db = _yon_packages_get_db_list(YON_PACKAGES_ALL);
     for (alpm_list_t *iter=sync_db;iter;iter=alpm_list_next(iter)){
         alpm_db_t *database = iter->data;
         alpm_pkg_t *package = alpm_db_get_pkg(database,package_name);
+        
         if (package) return 1;
     }
     return 0;