feat(docs): replace remaining native title= attributes with Tooltip (#495)

[sridhar-3009]

Summary

Continues the #495 migration (see also #642) for the remaining apps/docs components with native title= HTML attributes.

File	Change
DocsAskPanel.vue	4 icon buttons (Open in Bin, Copy conversation, Reset conversation, Fullscreen toggle) → Tooltip.Root / Tooltip.Activator / Tooltip.Content
DocsExampleCodePane.vue	"Collapse code" button → Tooltip.Root / Tooltip.Activator
DocsCodeActions.vue	5 GnActionButton instances wrapped via renderless Tooltip.Activator (spreads onPointerenter, onFocus, aria-describedby through inheritAttrs); title= removed
AppSettingsSheet.vue	"Sign out" button → Tooltip.Activator
AppSettingsTheme.vue	"Copy theme" button → Tooltip.Root / Tooltip.Activator
AppThemeCustomButton.vue	"Edit theme" button → Tooltip.Root / Tooltip.Activator
HomeInstallCommand.vue	Popover.Activator (inside Popover.Root) wrapped via renderless Tooltip.Activator
AppSearchInline.vue	Redundant title= removed (button has aria-label and visible "Search the docs…" text)

Closes part of #495 (remaining: DocsSearch.vue which has 9 dynamic title= bindings across complex list items)

[johnleider]

This PR currently has merge conflicts with its base branch (master) and can't be merged as-is. Could you rebase onto the latest master and resolve the conflicts when you get a chance?

Context: we're adopting a git-flow branch model — master for fixes/patches, dev for features (minor), next for breaking changes (major). This PR is correctly targeting master; it just needs a rebase to clear the conflicts. Thanks!

[johnleider]

Thanks for the work here, and apologies for the overlap. Closing this — it's been superseded.

The day after these PRs were opened, #621 landed and closed #495 by introducing a reusable AppTooltip wrapper and migrating the entire docs + playground chrome to it (now used in ~37 files on master). As a result:

• Issue [Refactor] Replace native title attributes with v0 Tooltip across docs and playground #495 is already closed.
• This branch is conflicting against master and can't be rebased cleanly onto the new approach.
• The inline Tooltip.Root / Tooltip.Activator / Tooltip.Content pattern here (repeating the same content-class string at every call site) is exactly what AppTooltip was created to replace — one <AppTooltip text="..."> per trigger.

One thing worth carrying forward regardless: Tooltip.Activator spreads aria-describedby (a description), not an accessible name. Several icon-only controls in this diff dropped title= without keeping an aria-label, which removes their accessible name (WCAG 4.1.2). AppTooltip and the retained aria-labels on master avoid that.

If you'd like to keep contributing to this area, the remaining un-migrated spots are the GnActionButton title= props in DocsCodeActions.vue — those should go through AppTooltip (renderless slot), not inline compounds. Happy to point you at a good first issue.