style(SettingsViews): 为XAML文件添加设计时属性和修复格式

为多个设置页面添加d:IsExpanded和d:Visibility设计时属性
修复AboutPage.xaml的BOM头问题
统一SettingsExpander的格式

Ink Canvas/Windows/SettingsViews/Pages/AboutPage.xaml

@@ -1,4 +1,4 @@
-<ui:Page x:Class="Ink_Canvas.Windows.SettingsViews.Pages.AboutPage"
+<ui:Page x:Class="Ink_Canvas.Windows.SettingsViews.Pages.AboutPage"
       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
       xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
       xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
@@ -64,7 +64,8 @@
                         <TextBlock x:Name="AppVersionTextBlock" Text="1.X.X.X" FontWeight="Bold" VerticalAlignment="Center" />
                     </ui:SettingsCard>
 
-                    <ui:SettingsExpander Header="{i18n:I18n Key=About_DeviceInfo}">
+                    <ui:SettingsExpander Header="{i18n:I18n Key=About_DeviceInfo}"
+                            d:IsExpanded="True">
                         <ui:SettingsExpander.HeaderIcon>
                             <ui:FontIcon Icon="{x:Static ui:SegoeFluentIcons.Devices}" />
                         </ui:SettingsExpander.HeaderIcon>
@@ -91,7 +92,8 @@
                         </ui:SettingsExpander.Items>
                     </ui:SettingsExpander>
 
-                    <ui:SettingsExpander Header="{i18n:I18n Key=About_PrivacyAndTelemetry}">
+                    <ui:SettingsExpander Header="{i18n:I18n Key=About_PrivacyAndTelemetry}"
+                            d:IsExpanded="True">
                         <ui:SettingsExpander.HeaderIcon>
                             <ui:FontIcon Icon="{x:Static ui:SegoeFluentIcons.Shield}" />
                         </ui:SettingsExpander.HeaderIcon>