Filling in a writing prompt should not open the editted object

### Steps to reproduce the behavior

1. Go to https://www.notebook.ai/my/content
2. Fill in the writing prompt. Press "Save answer to [object]".

### Expected behavior

The answer is saved to the object in question. Then, I would expect the current prompt to vanish and a new prompt to appear.

### Actual behavior

The page reloads and the object is opened.

Start at https://www.notebook.ai/my/content and reproduce the issue by filling in a writing prompt and selecting “Save answer to [object].” Trace the page reload and object-opening behavior, then verify that saving keeps the user on the content page, removes the current prompt, and displays a new prompt.

Written by the indexing model from the issue text.