Remove reference to transaction screen

src/tui/App.tsx

@@ -17,7 +17,6 @@ import { WalletStateScreen } from './screens/WalletState.js';
 import { TemplateListScreen } from './screens/TemplateList.js';
 import { ActionWizardScreen } from './screens/action-wizard/ActionWizardScreen.js';
 import { InvitationScreen } from './screens/invitations/InvitationScreen.js';
-import { TransactionScreen } from './screens/Transaction.js';
 
 import { MessageDialog } from './components/Dialog.js';
 
@@ -45,8 +44,6 @@ function Router(): React.ReactElement {
       return <ActionWizardScreen />;
     case 'invitations':
       return <InvitationScreen />;
-    case 'transaction':
-      return <TransactionScreen />;
     default:
       return <Text color={colors.error}>Unknown screen: {screen}</Text>;
   }