Polish config dialog header and center search input text

UserControls/PortalSearch.xaml

@@ -55,8 +55,10 @@
                     Value="{DynamicResource inputBorderColor}" />
             <Setter Property="BorderThickness"
                     Value="1" />
+            <Setter Property="VerticalContentAlignment"
+                    Value="Center" />
             <Setter Property="Padding"
-                    Value="8,3" />
+                    Value="10,0" />
             <Setter Property="Template">
                 <Setter.Value>
                     <ControlTemplate TargetType="{x:Type TextBox}">
@@ -167,7 +169,7 @@
                          Style="{StaticResource SearchTextBoxStyle}"
                          Width="320"
                          Height="40"
-                         Padding="8,3,42,3"
+                         Padding="10,0,42,0"
                          FontSize="14"
                          Panel.ZIndex="1110"
                          KeyDown="OnSearchBoxEnter" />