Administration: Add box reordering toggle to Screen Options. #32547

Job	Run time
Core running from build / Linux	2m 38s
Core running from src / Linux	2m 41s
Core running from build / MacOS	2m 4s
Core running from build / Windows	3m 30s
Core running from src / MacOS	2m 0s
Core running from src / Windows	3m 36s
Slack Notifications	0s
Failed workflow tasks	0s
	16m 29s

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