[web] log out if CSAT is missing

Summary: if dataLoaded && usingCommServicesAccessToken but there's no access token in redux, we should log out. in the next diff i'll introduce a modal that explains why the user has been logged out

Test Plan: used redux devtools to set commServicesAccessToken to null, confirmed that i was logged out

Reviewers: ashoat, tomek

Reviewed By: ashoat, tomek

Subscribers: tomek

Differential Revision: https://phab.comm.dev/D11705