frontend-plugin-api: complete deprecation of app blueprints

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/frontend-defaults/package.json

@@ -42,6 +42,7 @@
   "devDependencies": {
     "@backstage/cli": "workspace:^",
     "@backstage/core-plugin-api": "workspace:^",
+    "@backstage/plugin-app-react": "workspace:^",
     "@backstage/test-utils": "workspace:^",
     "@testing-library/jest-dom": "^6.0.0",
     "@testing-library/react": "^16.0.0",

packages/frontend-defaults/src/createApp.test.tsx

@@ -22,11 +22,11 @@ import {
   PageBlueprint,
   createFrontendPlugin,
   createFrontendFeatureLoader,
-  ThemeBlueprint,
   createFrontendModule,
   useAppNode,
   FrontendPluginInfo,
 } from '@backstage/frontend-plugin-api';
+import { ThemeBlueprint } from '@backstage/plugin-app-react';
 import { screen, waitFor } from '@testing-library/react';
 import { createApp } from './createApp';
 import { mockApis, renderWithEffects } from '@backstage/test-utils';

packages/frontend-defaults/src/createPublicSignInApp.test.tsx

@@ -14,10 +14,8 @@
  * limitations under the License.
  */
 
-import {
-  SignInPageBlueprint,
-  createFrontendModule,
-} from '@backstage/frontend-plugin-api';
+import { createFrontendModule } from '@backstage/frontend-plugin-api';
+import { SignInPageBlueprint } from '@backstage/plugin-app-react';
 import { render, screen, waitFor } from '@testing-library/react';
 import { useEffect } from 'react';
 import { createPublicSignInApp } from './createPublicSignInApp';