Increased tool options bar size

PixiEditor/Views/MainWindow.xaml

@@ -57,7 +57,7 @@
         </Grid.ColumnDefinitions>
         <Grid.RowDefinitions>
             <RowDefinition Height="30" />
-            <RowDefinition Height="20" />
+            <RowDefinition Height="40" />
             <RowDefinition Height="1*" />
             <RowDefinition Height="30" />
         </Grid.RowDefinitions>