[WV-2475] Extend the itemActionBar to include "make public" interface [TEAM REVIEW]

[ric0de]

Added visibility row + candidate staff section to item action bar

Wired up the chat bubble to toggle the make public row inline, added the "for candidate staff" claim & edit section, and gated everything behind a showCandidateStaffAndChat prop so it only shows in the ballot container for now. API calls are stubbed out for later

Mobile/tablet:

Desktop:

Other uses of ItemActionBar are unaffected:

To enable chat bubble + "For candidate staff" (candidates/politicians only), pass showCandidateStaffAndChat prop to anywhere <ItemActionBar /> is used

Also added a border under ModalTemplateA's header that only appears on scroll

[DaleMcGrew]

Looks solid @ric0de! Thank you. My only comment is that it looks like you rolled back some multi-line spacing required by the new ESLint rules. For future pull requests, just double-check npm run lint doesn't produced spacing warnings for the files you are working on. 👍