A generic shell heading stacked on top of each tab component's own internal
heading. The report named five tabs "at least"; auditing all 28 found 11:
downloads, sso, apiTokens, webhooks, businessProfile, crm, accounting,
whatsapp, slideshow, moderation, styling. On the first eight the two headings
resolve to the identical string -- sso and businessProfile literally render
the same key twice. The other three were near-identical stacked titles
("Moderation"/"Word Filters", "Custom CSS"/"Custom CSS Templates",
"CRM behaviour"/"CRM settings").
Clean, and left alone: general, events, categories, thumbnails, security, seo,
imageSecurity, status, analytics (its first heading is a genuine sub-section),
plus the eight already in TABS_WITH_OWN_HEADER.
Removed the component side and kept the shell heading: the shell heading is
the consistent one (icon + label + divider on ~20 tabs) and always matches the
nav item the admin clicked, and none of these components are mounted outside
SettingsPage, so nothing loses a title. Subtitles and intro copy preserved
throughout; orphaned icon imports removed.
The guard test was checked against the pre-fix blobs and does fail on them.
Refs testplan REPORT.md, "duplicate H2 section heading" warning.