Styling improvements

Aurora/Design/Components/NavigationMenu/NavigationMenu.css

@@ -17,11 +17,12 @@ ListView {
     font-size: 12;
     font-family: Courier New, Courier, monospace;
     font-style: italic;
-    padding-top: 18;
+    padding-top: 20;
 }
 
-#ItemCell label {
+#ItemCell Label {
     color: white;
+    background-color: #232323;
     font-size: 15;
     font-family: Courier New, Courier, monospace;
     font-style: normal;

Aurora/Design/Components/NavigationMenu/NavigationMenu.xaml

@@ -2,6 +2,7 @@
 <ContentView
      xmlns="http://xamarin.com/schemas/2014/forms"
      xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+     xmlns:behaviors="clr-namespace:Aurora.Design.Behaviors"
      x:Class="Aurora.Design.Components.NavigationMenu.NavigationMenu">
     <ContentView.Resources>
         <StyleSheet
@@ -12,6 +13,7 @@
             <ListView
                  x:Name="MenuItemsListView"
                  HasUnevenRows="true"
+                 SeparatorVisibility="None"
                  IsGroupingEnabled="true"
                  RowHeight="35"
                  CachingStrategy="RecycleElement">

Aurora/Design/Components/NavigationMenu/NavigationMenu.xaml.cs

@@ -11,8 +11,13 @@ namespace Aurora.Design.Components.NavigationMenu
         {
             InitializeComponent();
             ListView = MenuItemsListView;
+
         }
 
+        private void ListView_ItemSelected(object sender, SelectedItemChangedEventArgs e)
+        {
+            throw new NotImplementedException();
+        }
 
         public ListView ListView;