chore(home): drop now-unused RouterTabsComponent + isDefinedAndNotNull imports

ui-ngx/src/app/modules/home/home.component.ts

@@ -40,9 +40,7 @@ import { AuthState } from '@core/auth/auth.models';
 import { WINDOW } from '@core/services/window.service';
 import { instanceOfSearchableComponent, ISearchableComponent } from '@home/models/searchable-component.models';
 import { ActiveComponentService } from '@core/services/active-component.service';
-import { RouterTabsComponent } from '@home/components/router-tabs.component';
 import { FormBuilder } from '@angular/forms';
-import { isDefinedAndNotNull } from '@core/utils';
 import { ActionPreferencesPutUserSettings } from '@core/auth/auth.actions';
 import { HomeService } from '@core/services/home.service';