Improve settings view in GUI

DiscordChatExporter.Gui/Views/Dialogs/SettingsView.xaml

@@ -10,14 +10,25 @@
     d:DataContext="{d:DesignInstance Type=dialogs:SettingsViewModel}"
     Style="{DynamicResource MaterialDesignRoot}"
     mc:Ignorable="d">
-    <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Auto">
+    <Grid>
-        <StackPanel>
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="*" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+
         <TextBlock
+            Grid.Row="0"
             Margin="16,16,16,8"
             FontSize="19"
             FontWeight="Light"
             Text="Settings" />
 
+        <ScrollViewer
+            Grid.Row="1"
+            HorizontalScrollBarVisibility="Disabled"
+            VerticalScrollBarVisibility="Auto">
+            <StackPanel>
                 <!--  Auto-updates  -->
                 <DockPanel
                     Margin="16,8"
@@ -131,9 +142,12 @@
                             Value="{Binding ParallelLimit}" />
                     </StackPanel>
                 </DockPanel>
+            </StackPanel>
+        </ScrollViewer>
 
         <!--  Save button  -->
         <Button
+            Grid.Row="2"
             Margin="16"
             HorizontalAlignment="Stretch"
             Command="{s:Action Close}"
@@ -141,6 +155,5 @@
             IsCancel="True"
             IsDefault="True"
             Style="{DynamicResource MaterialDesignOutlinedButton}" />
-        </StackPanel>
+    </Grid>
-    </ScrollViewer>
 </UserControl>