fix: Enable all examples.

Author: alexis-landrieu-avanade

src/app/sandbox/sandbox.component.html

@@ -1,10 +1,10 @@
 <!-- Template Reminder -->
-<!-- <app-example1>
+<app-example1>
     <button #view1>Simple Button {{checkView(view1, "Sandbox")}}</button>
-</app-example1> -->
+</app-example1>
 
 <!-- Template & Container Use Cases -->
-<!-- <app-example2></app-example2>  -->
+<app-example2></app-example2> 
 
 <!-- Dynamic contents - Full -->
-<!-- <app-example3></app-example3> -->
+<app-example3></app-example3>