[lib] Update useAncestorThreads to consider thick threads

Summary:
issue: ENG-9260
We want to remove breadcrumbs from NavStateInfoBar when creating a new thread

Test Plan:
Tested that breadcrumbs are no longer present in NavStateInfoBar when creating a thick thread
Checked all places where useAncestorThreads is used and verified that the bahviour is correct for all of them (it is provided D13320 is also applied)

Reviewers: tomek

Reviewed By: tomek

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D13336