[lib] Introduce useThreadFrozenDueToViewersBlock

Summary:
We introduce a "hook version" of threadFrozenDueToViewersBlock which will allow us to set skipMemberAdminRoleCheck to true in the call to threadIsWithBlockedUserOnly in [web/native]/ChatInputBar and use the "updated" community role logic instead.

Depends on D12265

Test Plan: So far just flow and some log statements to ensure that value is as expected + same as before.

Reviewers: ashoat, ginsu, tomek, varun

Reviewed By: ashoat, tomek

Differential Revision: https://phab.comm.dev/D12287