[PM-3533] Support onboarding Key Connector users with existing master passwords (#6082)

* Added checks for new KeyConnector URL in all references to the legacy one.

* Updated KeyConnector logoutCallback to be a Promise

* Removed extra dependencies from KeyConnectorService

* Made the logout callback async.

* Adjusted logic to handle having a master password.

* Updated not to return error if master key is not found.

* Undid change to callback to reduce scope of this change.

* Cleaned up functions.

* Updated tests.

* Updated comments.

* Updated comments.

* Updated to use getKeyConnectorUrl helper.

libs/angular/src/services/jslib-services.module.ts

@@ -572,8 +572,6 @@ import { AbstractThemingService } from "./theming/theming.service.abstraction";
         LogService,
         OrganizationServiceAbstraction,
         CryptoFunctionServiceAbstraction,
-        SyncNotifierServiceAbstraction,
-        MessagingServiceAbstraction,
         LOGOUT_CALLBACK,
       ],
     },