Added support for unpinning recycle bin from the sidebar (#1240)

Author: yaira2

Files/App.xaml.cs

@@ -168,7 +168,14 @@ private void CoreWindow_PointerPressed(CoreWindow sender, PointerEventArgs args)
 
         public static void UnpinItem_Click(object sender, RoutedEventArgs e)
         {
-            SidebarPinned.RemoveItem(rightClickedItem.Path.ToString());
+            if (rightClickedItem.Path.Equals(App.AppSettings.RecycleBinPath, StringComparison.OrdinalIgnoreCase))
+            {
+                AppSettings.PinRecycleBinToSideBar = false;
+            }
+            else
+            {
+                SidebarPinned.RemoveItem(rightClickedItem.Path.ToString());
+            }
         }
 
         public static void Clipboard_ContentChanged(object sender, object e)

Files/UserControls/SidebarControl.cs

@@ -145,6 +145,7 @@ private void NavigationViewLocationItem_RightTapped(object sender, RightTappedRo
             if (item.Path.Equals(App.AppSettings.RecycleBinPath, StringComparison.OrdinalIgnoreCase))
             {
                 ShowEmptyRecycleBin = true;
+                ShowUnpinItem = true;
             }
             else
             {