Harden the Share popover on the stream detail page (click-outside, Escape, focus return, ARIA)

[Austinaminu2]

Description

The custom "Share" popover on `app/app/stream/[id]/page.tsx:817-847` is a plain `absolute`-positioned div with no click-outside-to-close, no Escape-to-close, no `aria-expanded`/`aria-haspopup` on its trigger, and no focus return on close — unlike the Base-UI-backed `DropdownMenu`s used elsewhere in the app.

Location

`app/app/stream/[id]/page.tsx:817-847`

Task

Either replace this custom popover with the app's existing `DropdownMenu`/`Popover` primitive from `components/ui/`, or add the missing behaviors manually (click-outside handler, Escape handler, `aria-expanded`/`aria-haspopup` on the trigger, and focus return to the trigger on close).

Good for contributors because

Clear, well-scoped a11y hardening task, ideally solved by reusing an existing primitive already used elsewhere in the app.

[olacodes-01]

@olacodes-01 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello Maintainer, i have relevant experience on this issue and can deliver an excellent job. Please assign to me.

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[Johnero542]

@Johnero542 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello Maintainer, i have relevant experience on this issue and can deliver an excellent job. Please assign to me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Johnero542 to this issue.

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