Four rules rendered their bubble with `content: attr(title)` while leaving the
title attribute in place, so the browser drew its native tooltip over the styled
one — two bubbles, offset, one of them unthemed. That is the overlap.
setup-wizard.css already had it right with attr(data-tip). Everything else now
matches: the text moved to data-tip, which the browser does not render, and
aria-label carries it for assistive tech. 24 emitters migrated across 9 files,
including two that assign the text at runtime — those set both attributes so
neither goes stale.
The same sweep found the bubble was defined twice globally. core/forms/css had
the plain one; port-manager.css carried a nicer bordered, wrapping version
commented "Enhanced tooltips for main config help icons" — which never applied
to them, because forms.css loads afterwards at equal specificity and won. So
every help icon outside the port manager had been getting the plain bubble, with
`white-space: nowrap` and no max-width: a sentence-length tooltip rendered as one
unbroken line running past its own background. The wrapping version is now the
one in forms.css, the shadowed copy is gone, and the .port-manager-scoped rule
stays.
Verified on Bookstack's config page: 26 help icons, none carrying a title, all
carrying data-tip, and hovering one flips ::after content from `none` to the text
with a single themed bubble on screen.
No port-descriptor tooltip, deliberately. PORT_N fields are replaced at runtime
by the port manager, whose hidePortFieldLabels() sets the field's help icon to
display:none — anything put there is unreachable, confirmed in the DOM. The
format is already documented column by column by the port manager's own 13 help
icons, several in more detail than a single descriptor string could manage.
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