Add CSS animation-range to Firefox 150 release notes

[pepelsbey]

Description

• Adds release notes for the CSS animation-range group of properties.
• Removes animation-range from “not yet supported” phrase.

Motivation

The animation-range shipped in Firefox 150.

Additional details

• Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1825427

Related issues and pull requests

• Project [CSS] Support animation-range-{start|end} property on style #43565
• BCD Add Firefox 150 support for animation-range properties browser-compat-data#29494
• Content fixes Fix some mistakes in the CSS animation-range group #43810

[github-actions]

Preview URLs (2 pages)

• /en-US/docs/Mozilla/Firefox/Experimental_features
• /en-US/docs/Mozilla/Firefox/Releases/150

External URLs (2)

URL: /en-US/docs/Mozilla/Firefox/Experimental_features
Title: Experimental features in Firefox

• https://bugzil.la/1676779 (1 time) (Note! This may be a new URL 👀)

---

URL: /en-US/docs/Mozilla/Firefox/Releases/150
Title: Firefox 150 release notes for developers (Beta)

• https://bugzil.la/1825427 (1 time) (Note! This may be a new URL 👀)

[dipikabh]

Looks good! Thank you