build: add build target for CDN deployment

Author: Feiyang1

package.json

@@ -27,7 +27,7 @@
     "geolocation"
   ],
   "main": "dist/index.cjs.js",
-  "browser": "dist/geofire.js",
+  "browser": "dist/geofire.min.js",
   "module": "dist/index.esm.js",
   "typings": "dist/index.d.ts",
   "files": [

rollup.config.js

@@ -36,6 +36,15 @@ const completeBuilds = [{
     },
     plugins: [...plugins, uglify()]
   },
+  {
+    input: 'src/index.ts',
+    output: {
+      file: 'dist/geofire.js',
+      format: 'umd',
+      name: GLOBAL_NAME
+    },
+    plugins: [...plugins]
+  }
 ];
 
 export default [...completeBuilds];