fix: empty string option

src/MaaWpfGui/Res/Localizations/en-us.xaml

@@ -354,6 +354,7 @@ Please do not check it when the stage OF-1 is not unlocked.</system:String>
     <system:String x:Key="SystemNotification">System Notification</system:String>
     <system:String x:Key="HideCloseButton">Hide close button</system:String>
     <system:String x:Key="WindowTitleScrollable">Window Title Scrolling</system:String>
+    <system:String x:Key="NullFunctionality">Invert right click checkbox function</system:String>
     <system:String x:Key="TitleBarDisplayContent">Title Bar Display Content</system:String>
     <system:String x:Key="UseLogItemDateFormat">Custom log date format</system:String>
     <system:String x:Key="LogItemDateFormatString">Date format string</system:String>

src/MaaWpfGui/Res/Localizations/ja-jp.xaml

@@ -354,6 +354,7 @@
     <system:String x:Key="SystemNotification">重要な通知をポップアップする</system:String>
     <system:String x:Key="HideCloseButton">「閉じる」ボタンを隠す</system:String>
     <system:String x:Key="WindowTitleScrollable">タイトルのスクロール機能</system:String>
+    <system:String x:Key="NullFunctionality">右クリックチェックボックス機能を反転する</system:String>
     <system:String x:Key="TitleBarDisplayContent">タイトルバー表示コンテンツ</system:String>
     <system:String x:Key="UseLogItemDateFormat">カスタムログ日付形式</system:String>
     <system:String x:Key="LogItemDateFormatString">日付書式文字列</system:String>

src/MaaWpfGui/Res/Localizations/ko-kr.xaml

@@ -354,6 +354,7 @@ OF-1을 해금하지 않았다면 선택하지 말아 주세요.</system:String>
     <system:String x:Key="SystemNotification">중요 알림 팝업</system:String>
     <system:String x:Key="HideCloseButton">닫기 버튼 숨기기</system:String>
     <system:String x:Key="WindowTitleScrollable">윈도우 제목 스크롤</system:String>
+    <system:String x:Key="NullFunctionality">오른쪽 클릭 체크박스 기능 반전</system:String>
     <system:String x:Key="TitleBarDisplayContent">타이틀 바 표시 내용</system:String>
     <system:String x:Key="UseLogItemDateFormat">사용자 정의 로그 날짜 형식</system:String>
     <system:String x:Key="LogItemDateFormatString">날짜 형식 문자열</system:String>

src/MaaWpfGui/Res/Localizations/zh-cn.xaml

@@ -354,6 +354,7 @@
     <system:String x:Key="SystemNotification">重要信息弹出系统通知</system:String>
     <system:String x:Key="HideCloseButton">隐藏关闭按钮</system:String>
     <system:String x:Key="WindowTitleScrollable">窗口标题滚动</system:String>
+    <system:String x:Key="NullFunctionality">反转右键单击复选框功能</system:String>
     <system:String x:Key="TitleBarDisplayContent">标题栏显示内容</system:String>
     <system:String x:Key="UseLogItemDateFormat">自选日志日期格式</system:String>
     <system:String x:Key="LogItemDateFormatString">日期格式字符串</system:String>

src/MaaWpfGui/Res/Localizations/zh-tw.xaml

@@ -354,6 +354,7 @@
     <system:String x:Key="SystemNotification">重要訊息彈出系統通知</system:String>
     <system:String x:Key="HideCloseButton">隱藏關閉按鈕</system:String>
     <system:String x:Key="WindowTitleScrollable">窗口標題滾動</system:String>
+    <system:String x:Key="NullFunctionality">反轉右鍵點選複選框功能</system:String>
     <system:String x:Key="TitleBarDisplayContent">標題欄顯示內容</system:String>
     <system:String x:Key="UseLogItemDateFormat">自訂日誌日期格式</system:String>
     <system:String x:Key="LogItemDateFormatString">日期格式字串</system:String>

src/MaaWpfGui/Views/UserControl/Settings/GuiSettingsUserControl.xaml

@@ -52,18 +52,14 @@
                     Margin="10"
                     Content="{DynamicResource HideCloseButton}"
                     IsChecked="{Binding HideCloseButton}" />
-                <!--<CheckBox
-                Margin="10"
-                Content="{DynamicResource WindowTitleScrollable}"
-                IsChecked="{Binding WindowTitleScrollable}" />-->
                 <CheckBox
                     Margin="10"
                     Content="{DynamicResource WindowTitleScrollable}"
                     IsChecked="{Binding WindowTitleScrollable}" />
-                <CheckBox
+                <!-- <CheckBox
                     Margin="10"
                     Content="{DynamicResource NullFunctionality}"
-                    IsChecked="{Binding InvertNullFunction}" />
+                    IsChecked="{Binding InvertNullFunction}" /> -->
                 <hc:CheckComboBox
                     x:Name="CheckComboBox"
                     Width="180"