Update pixelfed config

config/pixelfed.php

@@ -158,6 +158,6 @@ return [
     */
     'image_quality'  => (int) env('IMAGE_QUALITY', 80),
 
-    'media_types' => env('MEDIA_TYPES', 'jpeg,png,gif'),
+    'media_types' => env('MEDIA_TYPES', 'image/jpeg,image/png,image/gif'),
 
 ];