[native] Add community name TextInput to CommunityConfiguration
Add TextInput field to CommunityConfiguration for user to enter desired community name.
Depends on D7951
Appears as expected, "functionality" will be tested with subsequent diffs.
Reviewers: ashoat, ginsu
Reviewed By: ashoat
Subscribers: tomek, ted
Differential Revision: https://phab.comm.dev/D7952