Give better feedback to the user for UNHANDLED_HTTP_CODE

Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/main/res/values/strings.xml

@@ -403,7 +403,7 @@
     <string name="instant_upload_path">/InstantUpload</string>
     <string name="auto_upload_path">/AutoUpload</string>
 
-    <string name="preview_media_unhandled_http_code_message">File is currently locked by another user or process and therefore not deletable.</string>
+    <string name="preview_media_unhandled_http_code_message">File is currently locked by another user or process and therefore not deletable. Please try again later.</string>
 
     <string name="preview_sorry">Sorry</string>
     <string name="preview_image_description">Image preview</string>