[web] introduce UserProfileModal component

Summary:
As a followup to introducing the user profile component, we should also introduce its containing component, which will be a mobile. Just like UserProfileBottomSheet this compnent will select the userInfo based on the userID and handle any containing component specific features (like onClose, etc)

https://linear.app/comm/issue/ENG-4964/introduce-user-profile-modal-component

Depends on D9409

Test Plan:
Please see the demo video below

Reviewers: atul, inka

Reviewed By: atul

Subscribers: ashoat, tomek, wyilio

Differential Revision: https://phab.comm.dev/D9410