[lib] [4/n] add action types to base types

Summary: add USER_SETTINGS to base actions

Test Plan: N/A just adding types

Reviewers: atul, ashoat, palys-swm

Reviewed By: ashoat

Subscribers: Adrian, karol-bisztyga, boristopalov

Differential Revision: https://phabricator.ashoat.com/D2342