Move CSS View Transitions to "fairly stable" in CSS 2023

[svgeesus]

Spun out from

• [css-2023] Finish up CSS Snapshot 2023 #9566

View Transitions 1 is a CR Snapshot and the test results show a single implementation doing well.
So it seems to meet the criteria.

[css-meeting-bot]

The CSS Working Group just discussed Move CSS View Transitions to "fairly stable" in CSS 2023, and agreed to the following:

• RESOLVED: Add View Transitions 1 to "fairly stable" in Snapshot 2023
• RESOLVED: moving css-view-transitions-1 to fairly stable

The full IRC log of that discussion

<noamr> SebastianZ: let's talk about the second topic 1st
<noamr> rossen: ready for 9577
<noamr> rossen: Chris said he's in favor of this
<noamr> rossen: anyone else that has opinions on this or objections
<noamr> fantasai: I agree with that, it's fairly stable, level of issues dropped to a low level, and we have an implementation so we worked out kinds
<noamr> kinks
<noamr> rossen: objections to moving VT to fairly stable?
<noamr> rossen: with no objections, calling this resolved
<fantasai> RESOLVED: Add View Transitions 1 to "fairly stable" in Snapshot 2023
<noamr> RESOLVED: moving css-view-transitions-1 to fairly stable