[native] simplify ThreadSettingsMember jsx

Summary:
Small refactor diff to simplify the JSX being returned in ThreadSettingsMember before I made this into a touchable

Depends on D9386

Test Plan: Confrimed that ThreadSettingsMember still looks and behaves the same

Reviewers: atul, inka

Reviewed By: atul

Subscribers: ashoat, tomek, wyilio

Differential Revision: https://phab.comm.dev/D9387