[native] Display an action sheet with the 'edit role' option
Summary:
The first option we display to the user is an "Edit role" item, where clicking it will take them to the role name / permissions screen. This diff just handles the action sheet, but the next one will
handle responding to pressing the 'Edit role' option. Down the line, I will also be adding the 'Delete' option to the action sheet.
Depends on D8522
Test Plan:
Verified that on iOS and Android, the action sheet looks as expected.
Reviewers: atul, ginsu
Reviewed By: ginsu
Subscribers: ashoat, tomek
Differential Revision: https://phab.comm.dev/D8523