Fix research in identities tab

src/cutecoin/gui/identities_tab.py

src/cutecoin/tests/certification/test_certification.py

src/cutecoin/tests/identities_tab/__init__.py

src/cutecoin/tests/identities_tab/test_identities_table.py

src/cutecoin/tests/mocks/bma/nice_blockchain.py

...utecoin/tests/process_cfg_community/test_add_community.py