docs: start adding the aria snapshot documentation #27428

Job	Run time
ubuntu-20.04 (chromium tip-of-tree)	14m 54s
ubuntu-22.04 (chromium - Node.js 18)	14m 38s
Test Runner (ubuntu-latest, 18, 1, 2)	30m 24s
Installation Test ubuntu-latest	10m 29s
ubuntu-22.04 (firefox - Node.js 18)	26m 32s
Test Runner (ubuntu-latest, 18, 2, 2)	5m 21s
VSCode Extension	28m 36s
Installation Test macos-latest	13m 28s
ubuntu-22.04 (webkit - Node.js 18)	17m 20s
Test Runner (windows-latest, 18, 1, 2)	43m 34s
Installation Test windows-latest	19m 59s
ubuntu-22.04 (chromium - Node.js 20)	14m 22s
Test Runner (windows-latest, 18, 2, 2)	8m 9s
ubuntu-22.04 (chromium - Node.js 22)	14m 18s
Web Components	1m 41s
Test Runner (macos-latest, 18, 1, 2)	29m 14s
Test Runner (macos-latest, 18, 2, 2)	4m 14s
Test Runner (ubuntu-latest, 20, 1, 2)	28m 56s
Test Runner (ubuntu-latest, 20, 2, 2)	4m 58s
Test Runner (ubuntu-latest, 22, 1, 2)	30m 19s
Test Runner (ubuntu-latest, 22, 2, 2)	5m 37s
	6h 7m 3s

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