[web] [fix] [ENG-977] fix empty chat screen on load
Summary:
fixes: https://linear.app/comm/issue/ENG-977/on-initial-load-a-conversation-should-be-selected
before:
after:
Test Plan: clear application cookies (both user and anonymous) in the browser dev tools. Adding ashoat since we paired on it.
Reviewers: atul, ashoat, palys-swm, def-au1t
Reviewed By: ashoat
Subscribers: Adrian, yayabosh
Differential Revision: https://phabricator.ashoat.com/D4040