[lib] Use getMostRecentNonLocalMessageID in ActivityHandler
[lib] Use getMostRecentNonLocalMessageID in ActivityHandler

Test Plan: Flow

Reviewers: atul, subnub, palys-swm

Reviewed By: palys-swm

Subscribers: KatPo, zrebcu411, Adrian

Differential Revision: https://phabricator.ashoat.com/D809

Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal