feat(client-presence): Expose Presence at Workspaces and State objects

[WillieHabi]

Description

This change passes down and exposes presence at Workspace (StatesWorkspace.presence and NotificationsWorkspace.presence) and State objects (Latest.presence, LatestMap.presence, and NotificationsManager.presence).

[jason-ha]

small requests :)

[jason-ha]

some dangling cleanup from before still needed

[tylerbutler]

Approving for docs. Please see comments.

[github-actions]

🔗 No broken links found! ✅

Your attention to detail is admirable.

linkcheck output

> fluid-framework-docs-site@0.0.0 ci:check-links /home/runner/work/FluidFramework/FluidFramework/docs
> start-server-and-test "npm run serve -- --no-open" 3000 check-links

1: starting server using command "npm run serve -- --no-open"
and when url "[ 'http://127.0.0.1:3000' ]" is responding with HTTP status code 200
running tests using command "npm run check-links"


> fluid-framework-docs-site@0.0.0 serve
> docusaurus serve --no-open

[SUCCESS] Serving "build" directory at: http://localhost:3000/

> fluid-framework-docs-site@0.0.0 check-links
> linkcheck http://localhost:3000 --skip-file skipped-urls.txt

Crawling...

Stats:
  163664 links
    1315 destination URLs
    1547 URLs ignored
       0 warnings
       0 errors