more extension tag filtering options

[light-and-ray]

Description

Allow user to show e.g. only "animation", "ui related" etc

I'm not sure about naming. And I can't make new radios closer together via css. :(

Screenshots/videos:

Checklist:

• [x] I have read contributing wiki page
• [x] I have performed a self-review of my own code
• [ ] My code follows the style guidelines
• [ ] My code passes tests