feature: add a menu item to open app data dir

src/App.axaml

@@ -33,6 +33,7 @@
       <NativeMenuItem Header="{DynamicResource Text.SelfUpdate}" Command="{x:Static s:App.CheckForUpdateCommand}"/>
       <NativeMenuItemSeparator/>
       <NativeMenuItem Header="{DynamicResource Text.Preference}" Command="{x:Static s:App.OpenPreferenceCommand}" Gesture="⌘+,"/>
+      <NativeMenuItem Header="{DynamicResource Text.OpenAppDataDir}" Command="{x:Static s:App.OpenAppDataDirCommand}"/>
       <NativeMenuItemSeparator/>
       <NativeMenuItem Header="{DynamicResource Text.Quit}" Command="{x:Static s:App.QuitCommand}" Gesture="⌘+Q"/>
     </NativeMenu>

src/App.axaml.cs

@@ -109,6 +109,11 @@ namespace SourceGit
             dialog.ShowDialog(toplevel);
         });
 
+        public static readonly SimpleCommand OpenAppDataDirCommand = new SimpleCommand(() =>
+        {
+            Native.OS.OpenInFileManager(Native.OS.DataDir);
+        });
+
         public static readonly SimpleCommand OpenAboutCommand = new SimpleCommand(() =>
         {
             var toplevel = GetTopLevel() as Window;

src/Resources/Locales/en_US.axaml

@@ -345,6 +345,7 @@
   <x:String x:Key="Text.Name" xml:space="preserve">Name:</x:String>
   <x:String x:Key="Text.NotConfigured" xml:space="preserve">Git has NOT been configured. Please to go [Preference] and configure it first.</x:String>
   <x:String x:Key="Text.Notice" xml:space="preserve">NOTICE</x:String>
+  <x:String x:Key="Text.OpenAppDataDir" xml:space="preserve">Open App Data Dir</x:String>
   <x:String x:Key="Text.OpenFolder" xml:space="preserve">SELECT FOLDER</x:String>
   <x:String x:Key="Text.OpenWith" xml:space="preserve">Open With...</x:String>
   <x:String x:Key="Text.Optional" xml:space="preserve">Optional.</x:String>

src/Resources/Locales/zh_CN.axaml

@@ -348,6 +348,7 @@
   <x:String x:Key="Text.Name" xml:space="preserve">名称 ：</x:String>
   <x:String x:Key="Text.NotConfigured" xml:space="preserve">GIT尚未配置。请打开【偏好设置】配置GIT路径。</x:String>
   <x:String x:Key="Text.Notice" xml:space="preserve">系统提示</x:String>
+  <x:String x:Key="Text.OpenAppDataDir" xml:space="preserve">浏览应用数据目录</x:String>
   <x:String x:Key="Text.OpenFolder" xml:space="preserve">选择文件夹</x:String>
   <x:String x:Key="Text.OpenWith" xml:space="preserve">打开文件...</x:String>
   <x:String x:Key="Text.Optional" xml:space="preserve">选填。</x:String>

src/Resources/Locales/zh_TW.axaml

@@ -348,6 +348,7 @@
   <x:String x:Key="Text.Name" xml:space="preserve">名稱 ：</x:String>
   <x:String x:Key="Text.NotConfigured" xml:space="preserve">GIT尚未配置。請開啟【偏好設定】配置GIT路徑。</x:String>
   <x:String x:Key="Text.Notice" xml:space="preserve">系統提示</x:String>
+  <x:String x:Key="Text.OpenAppDataDir" xml:space="preserve">瀏覽程式資料目錄</x:String>
   <x:String x:Key="Text.OpenFolder" xml:space="preserve">選擇資料夾</x:String>
   <x:String x:Key="Text.OpenWith" xml:space="preserve">開啟檔案...</x:String>
   <x:String x:Key="Text.Optional" xml:space="preserve">選填。</x:String>

src/Views/Launcher.axaml

@@ -41,6 +41,11 @@
                 <Path Width="14" Height="14" Data="{StaticResource Icons.Settings}"/>
               </MenuItem.Icon>
             </MenuItem>
+            <MenuItem Header="{DynamicResource Text.OpenAppDataDir}" Command="{x:Static s:App.OpenAppDataDirCommand}">
+              <MenuItem.Icon>
+                <Path Width="14" Height="14" Data="{StaticResource Icons.Explore}"/>
+              </MenuItem.Icon>
+            </MenuItem>
             <MenuItem Header="{DynamicResource Text.Hotkeys}" Command="{x:Static s:App.OpenHotkeysCommand}">
               <MenuItem.Icon>
                 <Path Width="14" Height="14" Data="{StaticResource Icons.Hotkeys}"/>