[gui:] re-renamed to spplus since it looks better :D

MainWindow.axaml

@@ -4,7 +4,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
         x:Class="spplus.MainWindow" WindowState="Maximized"
-        Title="SP+">
+        Title="spplus">
     <Border>
         <Grid RowDefinitions="30,*">
             <Menu Background="#50888888">
@@ -20,7 +20,7 @@
                     <MenuItem Header="Über" x:Name="MnuAbout" Click="MnuAbout_OnClick"  />
                 </MenuItem>
             </Menu>
-            <TabControl x:Name="TclMainView" Grid.Row="1">
+            <TabControl x:Name="TclMainView" Grid.Row="1" TabStripPlacement="Left">
                 <TabItem>
                     <TabItem.Header>
                         <StackPanel Orientation="Horizontal">