Merge pull request #567 from spotify/rugvip/storybook-deps

packages/storybook: hoist storybook addons so they can be loaded from other packages

packages/core/package.json

@@ -46,7 +46,6 @@
     "@backstage/test-utils": "0.1.1-alpha.4",
     "@backstage/test-utils-core": "^0.1.1-alpha.4",
     "@backstage/theme": "^0.1.1-alpha.4",
-    "@storybook/addon-storysource": "^5.3.18",
     "@testing-library/jest-dom": "^4.2.4",
     "@testing-library/react": "^9.3.2",
     "@testing-library/user-event": "^7.1.2",

packages/storybook/package.json

@@ -9,7 +9,8 @@
   },
   "workspaces": {
     "nohoist": [
-      "@storybook/**"
+      "@storybook/react/**",
+      "@storybook/addons/**"
     ]
   },
   "dependencies": {