[Flow202][web][skip-ci] [2/x] Address type errors in SubchannelMembersList
Summary:
The use of the generic useSelector from react-redux was hiding a type error introduced in D9640.
NOTE: CI will fail on this diff. I considered the possibility of fixing Flow errors BEFORE upgrading Flow, but it wasn't possible... in some cases, the fixes to support the new version of Flow caused errors in the old version. I could have hidden these type errors with $FlowFixMe lines and then later revert those, but that seemed like too much busy work.
Depends on D9767
Test Plan: Confirm the Flow errors go away
Reviewers: inka
Reviewed By: inka
Subscribers: tomek, wyilio
Differential Revision: https://phab.comm.dev/D9768