ux: the left change list in RevisionCompare uses the same width with it in CommitChanges view (#2055)

Signed-off-by: leo <longshuang@msn.cn>

Author: love-linger

src/Views/RevisionCompare.axaml

@@ -60,9 +60,9 @@
     <!-- Changes View -->
     <Grid Grid.Row="1">
       <Grid.ColumnDefinitions>
-        <ColumnDefinition Width="256" MinWidth="200"/>
+        <ColumnDefinition Width="{Binding Source={x:Static vm:Preferences.Instance}, Path=Layout.CommitDetailChangesLeftWidth, Mode=TwoWay}" MinWidth="200"/>
         <ColumnDefinition Width="4"/>
-        <ColumnDefinition Width="*"/>
+        <ColumnDefinition Width="*" MinWidth="100"/>
       </Grid.ColumnDefinitions>
 
       <Grid Grid.Column="0" RowDefinitions="26,*,26">