update npm

.gitignore

@@ -332,3 +332,4 @@ ASALocalRun/
 /.vscode
 /Clients/MQTTClient/.vscode
 /IoTSharp/ClientApp.rar
+/IoTSharp/ClientApp/package-lock.json

IoTSharp/IoTSharp.csproj

@@ -101,13 +101,13 @@
     </Exec>
     <Error Condition="'$(ErrorCode)' != '0'" Text="Node.js is required to build and run this project. To continue, please install Node.js from https://nodejs.org/, and then restart your command prompt or IDE." />
     <Message Importance="high" Text="Restoring dependencies using 'npm'. This may take several minutes..." />
-    <Exec WorkingDirectory="$(SpaRoot)" Command="npm install --registry=https://registry.npm.taobao.org" />
-    <Exec WorkingDirectory="$(SpaRoot)" Command="npm install -g @vue/cli --registry=https://registry.npm.taobao.org" />
+    <Exec WorkingDirectory="$(SpaRoot)" Command="npm install " />
+    <Exec WorkingDirectory="$(SpaRoot)" Command="npm install -g @vue/cli " />
   </Target>
 
   <Target Name="PublishRunWebpack" AfterTargets="ComputeFilesToPublish">
     <!-- As part of publishing, ensure the JS resources are freshly built in production mode -->
-    <Exec WorkingDirectory="$(SpaRoot)" Command="npm install --registry=https://registry.npm.taobao.org" />
+    <Exec WorkingDirectory="$(SpaRoot)" Command="npm install " />
     <Exec WorkingDirectory="$(SpaRoot)" Command="npm run build:prod" />