test: Add tests for tableView in AddressBookPage dialog

Summary:
This PR is a prerequisite for more thorough testing of filtering in the AddressBookPage class

qt: No need to force Qt::QueuedConnection for NotifyAddressBookChanged

This change simplifies tests for AddressBookPage class.
No user-faced behavior change.

qt, test: Add tests for tableView in AddressBookPage dialog

This is a backport of core-gui#591
Depends on D18164

Test Plan: ninja check

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Differential Revision: https://reviews.bitcoinabc.org/D18176