[PM-17717] Improve extension section header hover state #36292

Job	Run time
Check PR run / Check	2s
Setup	7s
Locales Test	8s
Build Safari	11m 44s
Build browser source	9s
Build (chrome, dist:chrome, dist-chrome.zip, dist-chrome-MV3)	10m 28s
Build (edge, dist:edge, dist-edge.zip, dist-edge-MV3)	10m 33s
Build (firefox, dist:firefox, dist-firefox.zip, dist-firefox)	6m 27s
Build (firefox-mv3, dist:firefox:mv3, dist-firefox.zip, DO-NOT-USE-FOR-PROD-dist-firefox-MV3)	10m 17s
Build (opera, dist:opera, dist-opera.zip, dist-opera)	6m 47s
Build (opera-mv3, dist:opera:mv3, dist-opera.zip, DO-NOT-USE-FOR-PROD-dist-opera-MV3)	10m 57s
Crowdin Push	0s
Check for failures	9s
	1h 7m 48s

Provide feedback