code_review: PR #795

* update zh_CN and zh_TW translations
* simplify calling `Welcome.Clone`

Author: love-linger

src/Resources/Locales/zh_CN.axaml

@@ -360,6 +360,7 @@
   <x:String x:Key="Text.Hotkeys" xml:space="preserve">快捷键参考</x:String>
   <x:String x:Key="Text.Hotkeys.Global" xml:space="preserve">全局快捷键</x:String>
   <x:String x:Key="Text.Hotkeys.Global.CancelPopup" xml:space="preserve">取消弹出面板</x:String>
+  <x:String x:Key="Text.Hotkeys.Global.Clone" xml:space="preserve">克隆远程仓库</x:String>
   <x:String x:Key="Text.Hotkeys.Global.CloseTab" xml:space="preserve">关闭当前页面</x:String>
   <x:String x:Key="Text.Hotkeys.Global.GotoPrevTab" xml:space="preserve">切换到上一个页面</x:String>
   <x:String x:Key="Text.Hotkeys.Global.GotoNextTab" xml:space="preserve">切换到下一个页面</x:String>

src/Resources/Locales/zh_TW.axaml

@@ -360,6 +360,7 @@
   <x:String x:Key="Text.Hotkeys" xml:space="preserve">快速鍵參考</x:String>
   <x:String x:Key="Text.Hotkeys.Global" xml:space="preserve">全域快速鍵</x:String>
   <x:String x:Key="Text.Hotkeys.Global.CancelPopup" xml:space="preserve">取消彈出面板</x:String>
+  <x:String x:Key="Text.Hotkeys.Global.Clone" xml:space="preserve">複製 (clone) 遠端存放庫</x:String>
   <x:String x:Key="Text.Hotkeys.Global.CloseTab" xml:space="preserve">關閉目前頁面</x:String>
   <x:String x:Key="Text.Hotkeys.Global.GotoPrevTab" xml:space="preserve">切換到上一個頁面</x:String>
   <x:String x:Key="Text.Hotkeys.Global.GotoNextTab" xml:space="preserve">切換到下一個頁面</x:String>

src/Views/Launcher.axaml.cs

@@ -139,15 +139,9 @@ protected override void OnKeyDown(KeyEventArgs e)
                 if (e.Key == Key.N)
                 {
                     if (vm.ActivePage.Data is not ViewModels.Welcome)
-                    {
                         vm.AddNewTab();
-                    }
-                    
-                    if (vm.ActivePage.Data is ViewModels.Welcome welcome)
-                    {
-                        welcome.Clone();
-                    }
-                    
+
+                    ViewModels.Welcome.Instance.Clone();                    
                     e.Handled = true;
                     return;
                 }