Fix bundle (#338)

Author: marcospassos

src/index.ts

@@ -2,9 +2,5 @@ import {Configuration, Plug, GlobalPlug} from './plug';
 
 export type {Configuration, Plug};
 
-const plug = new GlobalPlug();
-
-export {plug};
-
 /* eslint-disable-next-line import/no-default-export -- Should be default export */
-export default plug;
+export default GlobalPlug.GLOBAL;

src/plug.ts

@@ -88,6 +88,8 @@ function detectAppId(): string | null {
 }
 
 export class GlobalPlug implements Plug {
+    public static readonly GLOBAL = new GlobalPlug();
+
     private pluginFactories: {[key: string]: PluginFactory} = {
         playground: playgroundPluginFactory,
         preview: previewPluginFactory,