feat: provide usable UMD builds for all packages (#2141)

packages/netlify-cms-media-library-uploadcare/package.json

@@ -21,11 +21,6 @@
     "develop": "npm run watch",
     "build": "cross-env NODE_ENV=production webpack"
   },
-  "devDependencies": {
-    "cross-env": "^5.2.0",
-    "webpack": "^4.29.6",
-    "webpack-cli": "^3.2.3"
-  },
   "dependencies": {
     "uploadcare-widget": "^3.7.0",
     "uploadcare-widget-tab-effects": "^1.4.0"

packages/netlify-cms-media-library-uploadcare/src/index.js

@@ -140,4 +140,5 @@ async function init({ options = { config: {} }, handleInsert } = {}) {
  */
 const uploadcareMediaLibrary = { name: 'uploadcare', init };
 
+export const NetlifyCmsMediaLibraryUploadcare = uploadcareMediaLibrary;
 export default uploadcareMediaLibrary;