修复内嵌图片容易过长问题

News.xaml

@@ -278,7 +278,7 @@
 		<Ellipse/>
 		<TextBlock Style="{StaticResource ListItem}" Text="新的矿石分布" />
 
-		<Image Height="500" Source="https://attachment.mcbbs.net/data/myattachment/forum/202107/14/010016xee9cb7eb7nw67rc.png" Margin="10,0,10,0"/>
+		<Image MaxHeight="500" Source="https://attachment.mcbbs.net/data/myattachment/forum/202107/14/010016xee9cb7eb7nw67rc.png" Margin="10,0,10,0"/>
 		<TextBlock Text="矿石分布对比图(由 SPGoding 翻译)" FontSize="14" Foreground="#FF777777" HorizontalAlignment="Center" Margin="0,0,0,15"/>
 
 		<Ellipse/>