quickapp: 更新serve判断逻辑 windows平台 "/" 为 "\"

packages/uni-quickapp/bin/serve.js

@@ -2,7 +2,7 @@ const path = require('path')
 const moduleAlias = require('module-alias')
 moduleAlias.addAlias('../service', (fromPath, request, alias) => {
   // @hap-toolkit/packager/lib/router/routes/index.js
-  if (fromPath.indexOf('/@hap-toolkit') !== -1 && fromPath.indexOf('packager') !== -1) {
+  if (fromPath.indexOf('@hap-toolkit') !== -1 && fromPath.indexOf('packager') !== -1) {
     return path.resolve(__dirname, 'service.js')
   }
   return path.join(fromPath, '..', request)