fix: Accordion/Disclosure fixes from testing (#7218)
* remove UNSTABLE_ prefix
* add aria-hidden to collapsed disclosure panels
* add controlled example to s2 docs
* update S2 Accordion down state
* fix v3 styles (HCM, border-radius, hover when open)
* remove display: none in v3
* lint
* fix imports
* fix v3 focus/down styles
* ignore repeat keydown events
* fix acts
* switch onKeyDown to onPressStart
* add style props to v3 Disclosure, DisclosurePanel, and DisclosureHeader
* fix bottom border on individual disclosures
* lint
* fix same disclosure border top issue in v3
* use default case
* release keydown event
* fix storybook code output
* fix v3 quiet HCM
* docs: follow-up on accordion docs from testing (#7232)
* docs: follow-up on accordion docs from testing
* updates svgs for mobile, follow up from reviews
* prevent outline on header on android
* fix examples in useDisclosure on mobile
* update focus visible
* add focusProps to disclosure group example
* use merge props
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Co-authored-by: Yihui Liao <44729383+yihuiliao@users.noreply.github.com>
