create-app: add register component plugin and move plugin deps to app

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

@@ -24,10 +24,6 @@
       "plugins/*"
     ]
   },
-  "dependencies": {
-    "@backstage/plugin-catalog": "^{{version}}",
-    "@backstage/plugin-scaffolder": "^{{version}}"
-  },
   "devDependencies": {
     "@backstage/cli": "^{{version}}",
     "@spotify/prettier-config": "^7.0.0",

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

@@ -7,6 +7,9 @@
     "@material-ui/icons": "^4.9.1",
     "@backstage/cli": "^{{version}}",
     "@backstage/core": "^{{version}}",
+    "@backstage/plugin-catalog": "^{{version}}",
+    "@backstage/plugin-register-component": "^{{version}}",
+    "@backstage/plugin-scaffolder": "^{{version}}",
     "@backstage/test-utils": "^{{version}}",
     "@backstage/theme": "^{{version}}",
     "history": "^5.0.0",

packages/create-app/templates/default-app/packages/app/src/plugins.ts

@@ -1,2 +1,3 @@
 export { plugin as CatalogPlugin } from '@backstage/plugin-catalog';
+export { plugin as RegisterComponent } from '@backstage/plugin-register-component';
 export { plugin as ScaffolderPlugin } from '@backstage/plugin-scaffolder';