Follow-up to https://github.com/zed-industries/zed/pull/44819

Stop doing this in more cases:

<img width="1728" height="2168" alt="image"
src="https://github.com/user-attachments/assets/a82f7217-3b7a-4ca9-bb12-c3098b3e9913"
/>

Release Notes:

- Do not try to open PDF, zip and other binaries as text