feat: rename project to InboxConverge with configurable contact details

Agent-Logs-Url: https://github.com/christianlouis/pop_puller_to_gmail/sessions/82f2f361-3513-44e6-991b-db1a19902772

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

backend/tests/unit/test_app.py

@@ -89,7 +89,7 @@ class TestApplicationFactory:
 
     async def test_app_title(self, app):
         """Test that app has correct title"""
-        assert app.title == "InboxRescue"
+        assert app.title == "InboxConverge"
 
     async def test_app_version(self, app):
         """Test that app has a version"""