Fix busy overlay in cloud signup page

Fixes #118

nymea-app/ui/appsettings/CloudLoginPage.qml

@@ -315,7 +315,6 @@ Page {
                     }
                 }
 
-
                 Connections {
                     target: AWSClient
                     onSignupResult: {
@@ -337,6 +336,10 @@ Page {
                     }
                 }
             }
+
+            BusyOverlay {
+                id: busyOverlay
+            }
         }
     }
 

nymea-app/ui/components/BusyOverlay.qml

@@ -8,6 +8,11 @@ Rectangle {
 
     property bool shown: false
 
+    // Event eater
+    MouseArea {
+        anchors.fill: parent
+    }
+
     BusyIndicator {
         anchors.centerIn: parent
     }