chore: fix versions

Signed-off-by: benjdlambert <ben@blam.sh>

packages/create-app/templates/next-app/app-config.yaml.hbs

@@ -5,6 +5,12 @@ app:
   experimental:
     packages: all
 
+  extensions:
+    
+    # Disable the nav items that we're manually rendering in packages/app/src/modules/nav/Sidebar.tsx
+    - nav-item:catalog: false
+    - nav-item:scaffolder: false
+
 organization:
   name: My Company
 

packages/create-app/templates/next-app/packages/app/package.json.hbs

@@ -22,7 +22,10 @@
     "@backstage/plugin-scaffolder": "^{{ version '@backstage/plugin-scaffolder'}}",
     "@backstage/plugin-search": "^{{ version '@backstage/plugin-search'}}",
     "@backstage/plugin-user-settings": "^{{ version '@backstage/plugin-user-settings'}}",
+    "@backstage/core-components": "^{{ version '@backstage/core-components'}}",
     "@backstage/ui": "^{{ version '@backstage/ui'}}",
+    "@material-ui/core": "^4.12.2",
+    "@material-ui/icons": "^5.11.11",
     "react": "^18.0.2",
     "react-dom": "^18.0.2",
     "react-router": "^6.3.0",