Add dbaeumer.vscode-eslint extension into workspace recommended (#2939)

.vscode/extensions.json

@@ -1,6 +1,7 @@
 {
     "recommendations": [
         "yzhang.markdown-all-in-one",
-        "esbenp.prettier-vscode"
+        "esbenp.prettier-vscode",
+        "dbaeumer.vscode-eslint"
     ]
 }