docs: improve docs for WebSocketRoute #26940

Job	Run time
ubuntu-20.04 (chromium tip-of-tree)	12m 27s
ubuntu-22.04 (chromium - Node.js 18)	12m 42s
Installation Test ubuntu-latest	10m 19s
ubuntu-22.04 (firefox - Node.js 18)	1h 31m 43s
Installation Test macos-latest	8m 19s
ubuntu-22.04 (webkit - Node.js 18)	15m 37s
Installation Test windows-latest	19m 23s
Test Runner (ubuntu-latest, 18, 1, 2)	28m 36s
ubuntu-22.04 (chromium - Node.js 20)	12m 21s
Test Runner (ubuntu-latest, 18, 2, 2)	4m 51s
ubuntu-22.04 (chromium - Node.js 22)	11m 49s
VSCode Extension	27m 42s
Test Runner (windows-latest, 18, 1, 2)	39m 24s
Test Runner (windows-latest, 18, 2, 2)	7m 43s
Web Components	2m 38s
Test Runner (macos-latest, 18, 1, 2)	20m 4s
Test Runner (macos-latest, 18, 2, 2)	2m 56s
Test Runner (ubuntu-latest, 20, 1, 2)	25m 43s
Test Runner (ubuntu-latest, 20, 2, 2)	4m 15s
Test Runner (ubuntu-latest, 22, 1, 2)	27m 55s
Test Runner (ubuntu-latest, 22, 2, 2)	4m 29s
	6h 30m 56s

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