feat(Preferences): add UI configuration for hover view tracking

在“允许滚动条自动隐藏”下方新增了“开启悬停视图跟踪”的全局选项，并配置了多语言翻译。

FAILED TEST CASES: NONE

Author: heartacker

src/Resources/Locales/en_US.axaml

@@ -641,6 +641,7 @@
   <x:String x:Key="Text.Preferences.Appearance.Theme" xml:space="preserve">Theme</x:String>
   <x:String x:Key="Text.Preferences.Appearance.ThemeOverrides" xml:space="preserve">Theme Overrides</x:String>
   <x:String x:Key="Text.Preferences.Appearance.UseAutoHideScrollBars" xml:space="preserve">Use auto-hide scrollbars</x:String>
+  <x:String x:Key="Text.Preferences.Appearance.EnableHoverViewTracking" xml:space="preserve">Enable hover view tracking</x:String>
   <x:String x:Key="Text.Preferences.Appearance.UseFixedTabWidth" xml:space="preserve">Use fixed tab width in titlebar</x:String>
   <x:String x:Key="Text.Preferences.Appearance.UseNativeWindowFrame" xml:space="preserve">Use native window frame</x:String>
   <x:String x:Key="Text.Preferences.DiffMerge" xml:space="preserve">DIFF/MERGE TOOL</x:String>

src/Resources/Locales/zh_CN.axaml

@@ -645,6 +645,7 @@
   <x:String x:Key="Text.Preferences.Appearance.Theme" xml:space="preserve">主题</x:String>
   <x:String x:Key="Text.Preferences.Appearance.ThemeOverrides" xml:space="preserve">主题自定义</x:String>
   <x:String x:Key="Text.Preferences.Appearance.UseAutoHideScrollBars" xml:space="preserve">允许滚动条自动隐藏</x:String>
+  <x:String x:Key="Text.Preferences.Appearance.EnableHoverViewTracking" xml:space="preserve">开启悬停视图跟踪</x:String>
   <x:String x:Key="Text.Preferences.Appearance.UseFixedTabWidth" xml:space="preserve">主标签使用固定宽度</x:String>
   <x:String x:Key="Text.Preferences.Appearance.UseNativeWindowFrame" xml:space="preserve">使用系统默认窗体样式</x:String>
   <x:String x:Key="Text.Preferences.DiffMerge" xml:space="preserve">对比/合并工具</x:String>

src/Resources/Locales/zh_TW.axaml

@@ -645,6 +645,7 @@
   <x:String x:Key="Text.Preferences.Appearance.Theme" xml:space="preserve">佈景主題</x:String>
   <x:String x:Key="Text.Preferences.Appearance.ThemeOverrides" xml:space="preserve">自訂主題</x:String>
   <x:String x:Key="Text.Preferences.Appearance.UseAutoHideScrollBars" xml:space="preserve">允許自動隱藏捲軸</x:String>
+  <x:String x:Key="Text.Preferences.Appearance.EnableHoverViewTracking" xml:space="preserve">開啟懸停視圖跟蹤</x:String>
   <x:String x:Key="Text.Preferences.Appearance.UseFixedTabWidth" xml:space="preserve">使用固定寬度的分頁標籤</x:String>
   <x:String x:Key="Text.Preferences.Appearance.UseNativeWindowFrame" xml:space="preserve">使用系統原生預設視窗樣式</x:String>
   <x:String x:Key="Text.Preferences.DiffMerge" xml:space="preserve">對比/合併工具</x:String>

src/ViewModels/Histories.cs

@@ -80,7 +80,7 @@ public long HoveredCommitIndex
             {
                 if (SetProperty(ref _hoveredCommitIndex, value))
                 {
-                    if (value >= 0 && value < _commits.Count)
+                    if (Preferences.Instance.EnableHoverViewTracking && value >= 0 && value < _commits.Count)
                     {
                         var hoveredIndex = (int)value;
                         var depth = 1000u;

src/ViewModels/Preferences.cs

@@ -181,6 +181,12 @@ public bool UseAutoHideScrollBars
             set => SetProperty(ref _useAutoHideScrollBars, value);
         }
 
+        public bool EnableHoverViewTracking
+        {
+            get => _enableHoverViewTracking;
+            set => SetProperty(ref _enableHoverViewTracking, value);
+        }
+
         public bool UseGitHubStyleAvatar
         {
             get => _useGitHubStyleAvatar;
@@ -824,6 +830,7 @@ private bool RemoveInvalidRepositoriesRecursive(List<RepositoryNode> collection)
         private int _subjectGuideLength = 50;
         private bool _useFixedTabWidth = true;
         private bool _useAutoHideScrollBars = true;
+        private bool _enableHoverViewTracking = true;
         private bool _useGitHubStyleAvatar = true;
         private bool _showAuthorTimeInGraph = false;
         private bool _showChildren = false;

src/Views/Histories.axaml.cs

@@ -241,6 +241,12 @@ protected override void OnPointerMoved(PointerEventArgs e)
             if (DataContext is not ViewModels.Histories vm)
                 return;
 
+            if (!ViewModels.Preferences.Instance.EnableHoverViewTracking)
+            {
+                vm.HoveredCommitIndex = -1;
+                return;
+            }
+
             var point = e.GetPosition(this);
             var row = (this.InputHitTest(point) as Visual)?.FindAncestorOfType<DataGridRow>();
             if (row != null)

src/Views/Preferences.axaml

@@ -296,6 +296,11 @@
                       IsChecked="{Binding UseAutoHideScrollBars, Mode=TwoWay}"/>
 
             <CheckBox Grid.Row="8" Grid.Column="1"
+                      Height="32"
+                      Content="{DynamicResource Text.Preferences.Appearance.EnableHoverViewTracking}"
+                      IsChecked="{Binding EnableHoverViewTracking, Mode=TwoWay}"/>
+
+            <CheckBox Grid.Row="9" Grid.Column="1"
                       Height="32"
                       Content="{DynamicResource Text.Preferences.Appearance.UseNativeWindowFrame}"
                       IsChecked="{Binding UseSystemWindowFrame, Mode=OneTime}"