fix(v3): compatible with umd

packages/webpack-uni-pages-loader/lib/platforms/app-plus/app-config-service.js

@@ -41,7 +41,7 @@ var isReady=false;var onReadyCallbacks=[];
 var __uniConfig = ${JSON.stringify(appJson, null)};
 var __uniRoutes = ${JSON.stringify(__uniRoutes)};
 __uniConfig.onReady=function(callback){if(__uniConfig.ready){callback()}else{onReadyCallbacks.push(callback)}};Object.defineProperty(__uniConfig,"ready",{get:function(){return isReady},set:function(val){isReady=val;if(!isReady){return}const callbacks=onReadyCallbacks.slice(0);onReadyCallbacks.length=0;callbacks.forEach(function(callback){callback()})}});
-service.register("uni-app-config",{create(a,b,c){if(!__uniConfig.viewport){var d=b.weex.config.env.scale,e=b.weex.config.env.deviceWidth,f=Math.ceil(e/d);Object.assign(__uniConfig,{viewport:f,defaultFontSize:Math.round(f/20)})}return{instance:{__uniConfig:__uniConfig,__uniRoutes:__uniRoutes}}}});
+service.register("uni-app-config",{create(a,b,c){if(!__uniConfig.viewport){var d=b.weex.config.env.scale,e=b.weex.config.env.deviceWidth,f=Math.ceil(e/d);Object.assign(__uniConfig,{viewport:f,defaultFontSize:Math.round(f/20)})}return{instance:{__uniConfig:__uniConfig,__uniRoutes:__uniRoutes,window:void 0}}}});
 `
   }
 }