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

packages/netlify-cms-widget-date/package.json

@@ -23,19 +23,13 @@
   "dependencies": {
     "react-datetime": "^2.16.3"
   },
-  "devDependencies": {
-    "cross-env": "^5.2.0",
-    "css-loader": "^2.1.1",
-    "to-string-loader": "^1.1.5",
-    "webpack": "^4.29.6",
-    "webpack-cli": "^3.2.3"
-  },
   "peerDependencies": {
     "@emotion/core": "^10.0.9",
     "@emotion/styled": "^10.0.9",
-    "moment": "^2.11.2",
-    "netlify-cms-ui-default": "^2.0.0",
-    "prop-types": "^15.5.10",
-    "react": "^16.4.1"
+    "moment": "^2.24.0",
+    "netlify-cms-ui-default": "^2.4.1-beta.0",
+    "prop-types": "^15.7.2",
+    "react": "^16.8.4",
+    "react-dom": "^16.8.4"
   }
 }

packages/netlify-cms-widget-date/src/index.js

@@ -8,4 +8,5 @@ const Widget = (opts = {}) => ({
   ...opts,
 });
 
+export const NetlifyCmsWidgetDate = { Widget, controlComponent, previewComponent };
 export { Widget as default, controlComponent, previewComponent };

packages/netlify-cms-widget-date/webpack.config.js

@@ -1,17 +1,3 @@
 const { getConfig } = require('../../scripts/webpack.js');
 
-const baseWebpackConfig = getConfig();
-
-module.exports = {
-  ...baseWebpackConfig,
-  module: {
-    rules: [
-      ...baseWebpackConfig.module.rules,
-      {
-        test: /\.css$/,
-        include: [/react-datetime/],
-        use: ['to-string-loader', 'css-loader'],
-      },
-    ],
-  },
-};
+module.exports = getConfig();