Section Styles: improve performance and conceptual consistency #6877

Job	Run time
Core running from build / Core running from build / Linux	2m 0s
Core running from src / Core running from src / Linux	1m 56s
Core running from build / Core running from build / Windows	3m 8s
Core running from build / Core running from build / MacOS	1m 32s
Core running from src / Core running from src / Windows	4m 39s
Core running from src / Core running from src / MacOS	2m 5s
Gutenberg running from build / Gutenberg running from build / Linux	8m 16s
Gutenberg running from src / Gutenberg running from src / Linux	8m 20s
Gutenberg running from build / Gutenberg running from build / Windows	11m 52s
Gutenberg running from build / Gutenberg running from build / MacOS	7m 13s
Gutenberg running from src / Gutenberg running from src / Windows	10m 38s
Gutenberg running from src / Gutenberg running from src / MacOS	7m 5s
Slack Notifications	0s
Failed workflow tasks	0s
	1h 8m 44s

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