[web][native][lib] deprecate sendDMActionTypes and simplify hooks

Summary:
ENG-8424.

This removes code, now we use dedicated actions for composable messages. Some more context about why this is better in D13290.

Depends on D13329

Test Plan: Flow

Reviewers: tomek

Reviewed By: tomek

Subscribers: ashoat

Differential Revision: https://phab.comm.dev/D13330