Add command palette trigger button to admin bar #26342

Job	Run time
Core running from build / Linux	4m 29s
Core running from src / Windows	9m 16s
Core running from build / Windows	9m 54s
Core running from build / MacOS	4m 49s
Core running from src / Linux	4m 20s
Core running from src / MacOS	4m 16s
Slack Notifications	0s
Failed workflow tasks	0s
	37m 4s

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