Hide YT Shorts (Pure CSS) от Cotter Phinney

Hides shorts from the YouTube home page, search results, sidebar, and channel pages.

PRIVACY FIRST:
- No data collection whatsoever
- No JavaScript—pure CSS only
- No permissions beyond matching YouTube URLs
- No network requests, no storage, no analytics

The full source code is available on GitHub: https://github.com/cotterphinney/hide-youtube-shorts-firefox