Summary:
fix(keymappings): Enter to focus item, logout works now
Minor fix for some problems with activity bar
Fix tabindex = 1 where tabindex should be =-1
Remove idgen that was causing footers to be replaced
WIP
Draft store extension hooks
Test Plan: Run tests
Reviewers: evan
Reviewed By: evan
Differential Revision: https://review.inboxapp.com/D1320
