Added Microsoft Entra recommendation

Author: mpminayo

1-Authentication/3-sign-in-electron/.vscode/extensions.json

@@ -0,0 +1,6 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": ["ms-azuretools.ms-entra"]
+  }
+  

1-Authentication/5-sign-in-express/.vscode/extensions.json

@@ -0,0 +1,6 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": ["ms-azuretools.ms-entra"]
+  }
+  

1-Authentication/6-sign-in-node-cli-app/.vscode/extensions.json

@@ -0,0 +1,6 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": ["ms-azuretools.ms-entra"]
+  }
+