Code Quality: Remove extra leading space in the class attribute in `l… #53842

Job	Run time
Coding standards / PHP checks	23s
Coding standards / JavaScript checks	3m 33s
Slack Notifications / Prepare notifications	3s
Slack Notifications / Success notifications	4s
Slack Notifications / Failure notifications	0s
Slack Notifications / Fixed notifications	0s
Slack Notifications / Cancelled notifications	0s
Failed workflow tasks	0s
	4m 3s

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