[native] Lift component[DidMount/WillUnmount] lifecycle methods to useEffect in ConnectedChatThreadList
Replace componentDidMount and componentWillUnmount with a useEffect in ConnectedThreadList. These lifecycle methods effectively add and remove listeners.
This diff is just one step in the process of converting ChatThreadList into a functional component. When this work is done, we will be able to avoid a lot of re-rendering and hopefully improve performance quite a bit.
Depends on D9188
Test Plan: ChatThreadList + search experience continue to work as expected.
Reviewers: ginsu, tomek, rohan, ashoat
Reviewed By: ashoat
Differential Revision: https://phab.comm.dev/D9189