Revert "[lib] Displaying edited content in a pending thread"

Summary: This reverts commit 108dae894c4e4d80791cc517f3a24af841b36918.

Test Plan: Run the app on iOS and web, and check if tooltips work on the native.

Reviewers: ashoat

Reviewed By: ashoat

Subscribers: tomek, atul

Differential Revision: https://phab.comm.dev/D7325