[branding] Be more chatty when slideshow is loaded

src/branding/default/show.qml

@@ -68,5 +68,8 @@ Presentation
         centeredText: "This is a third Slide element."
     }
 
-    Component.onCompleted: advanceTimer.running = true
+    Component.onCompleted: {
+        advanceTimer.running = true;
+        console.log("Component complete");
+    }
 }