[native] add back password input for account deletion

Summary:
as per the white paper, we will require password users to enter their password in order to delete their account.

Depends on D12325

Test Plan:

1. usingCommServicesAccessToken = false; no change to the UI
2. usingCommServicesAccessToken = true, password user; prompted for password, if incorrect, identity account deletion fails and alert is displayed, but user is not logged out. if correct, account successfully deleted and user is logged out
3. usingCommServicesAccessToken = true, wallet user; no change to the UI, account deletion successful
4. usingCommServicesAccessToken = true, password user, keyserver offline; prompted for password, if correct identity account deletion succeeds but keyserver account deletion fails. user is logged out and deleteAccountActionTypes.success is dispatched

Reviewers: ashoat, tomek, inka

Reviewed By: ashoat, inka

Subscribers: inka, kamil

Differential Revision: https://phab.comm.dev/D12326