Update azure-pipelines-cd.yml for Azure Pipelines

azure-pipelines-cd.yml

@@ -13,6 +13,14 @@ jobs:
   - script: 'npm install typescript'
     displayName: 'npm install typescript'
 # Sandbox
+  - task: Npm@1
+    displayName: 'npm install'
+    inputs:
+      workingDir: Tools/Gulp
+      verbose: false
+  - script: 'gulp sandbox'
+    workingDirectory: Tools/Gulp
+    displayName: 'Build Sandbox'
   - script: 'npx netlify unlink'
     displayName: 'netlify unlink'
   - script: 'npx netlify link --id=4deda23f-f382-458b-897e-2f2111b5f263'