feat: youtube alt

Fix accessibility issues

Added Obsidian

v3.0.1

LittleLink v3

Saved 46 KB out of 303 KB. 17.1% per file on average.

Added:
- Version number at the top of index.html (as requested in Issue 122)

Migrated to LittleLink Extended (based on popularity and LittleLink usage):
- BeReal
- Clubhouse
- Guilded
- Partiful
- Post.news
- QQ
- Skoob
- Xing

Updated:
- Discord (getting ahead of the new branding rolling out)

Fixed:
- Hover state for Revolut

Added the `aria-hidden="true"` to `img` to avoid having the icon be read by screen readers. Screen readers should now read as a simplified `[brand] button` (i.e. `LittleLink button`). Alt text is making a return with this as well.

I've removed Twitter, since it looks like X branding is sticking around.

Renamed `discogs_alt` to `discogs-alt` to align with how other alt versions are added.

Added Stack Overflow, renamed Steam Dark to Steam Alt to match the defined pattern we're already using for alternate buttons. Added stroke for accessibility.

Update BlueSky logo

Changed the Bluesky svg to their new logo, and added an alt

Small fix and logo changes

Added border around Bereal, adjusted color and switched Revolut logo for the latest version

add QQ

I would like to add BeReal as a very popular site mostly in EU.