[native] Pull static fns out of ChatThreadList to ChatThreadListUtils
Summary:
There are a handful of static functions in the ChatThreadList component. Figured I'd move these out to a separate utils file.
(I initially had a huge diff that converted ChatThreadList to a functional component and added various memoizations. However, I realized that diff would be pretty difficult to review so I'm breaking down the refactor into hopefully easier to review pieces.)
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.
In subsequent diffs will
- Lift up "search-related" JSX
- etc.. continue turning ChatThreadList into a functional component so we can more precisely memoize things, particularly ChatThreadListItems.
Depends on D9134
Test Plan: Search experience continues to work as expected. Can search for users/threads/etc. as before.
Reviewers: ginsu, tomek, rohan
Reviewed By: ginsu
Subscribers: ashoat
Differential Revision: https://phab.comm.dev/D9135