Fix saving media

app/src/main/java/app/fedilab/android/helper/MediaHelper.java

@@ -143,10 +143,11 @@ public class MediaHelper {
                     public void onResourceReady(@NotNull File file, Transition<? super File> transition) {
                         final String fileName = URLUtil.guessFileName(url, null, null);
 
+
                         File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
-                        final String targeted_folder = path + "/" + context.getString(R.string.app_name);
-                        if (!new File(targeted_folder).exists()) {
-                            new File(targeted_folder).mkdir();
+                        File targeted_folder = new File(path, context.getString(R.string.app_name));
+                        if (!targeted_folder.exists()) {
+                            targeted_folder.mkdir();
                         }
                         FileInputStream fis = null;
                         FileOutputStream fos = null;