Extract Sharing Tool into @storacha/ui-react and update Console

[luisawatkins]

Move the space sharing UI from Console into the shared UI package (@storacha/ui-react) to centralize functionality and reduce duplication.

Scope

• Add SpaceShare component to @storacha/ui-react
• Export SpaceShare from package index
• Update Console's share page to consume shared component
• Verify builds and type checks

Implementation Details

New Component:

• packages/ui/packages/react/src/SpaceShare.tsx

Export:

• packages/ui/packages/react/src/index.ts

Console Integration:

• packages/console/src/app/space/[did]/share/page.tsx

Key Features:

• Email/DID sharing with delegation listing
• Revocation support with status checking
• UCAN archive download for DID delegations
• Uses useW3 hook for client access

Acceptance Criteria

• SpaceShare exported from @storacha/ui-react without Console dependencies
• Console successfully renders SpaceShare on /space/[did]/share
• Email sharing creates and lists delegations
• DID input triggers UCAN download
• Revoked delegations display separately
• All builds and type checks pass

[Abidoyesimze]

Can I take in this issue