improve:优化进程崩溃检测机制

Ink Canvas/MainWindow_cs/MW_FloatingBarIcons.cs

@@ -1577,8 +1577,10 @@ namespace Ink_Canvas {
         public static bool CloseIsFromButton = false;
 
         public void BtnExit_Click(object sender, RoutedEventArgs e) {
-            CloseIsFromButton = true;
-            Close();
+            App.IsAppExitByUser = true;
+            Application.Current.Shutdown();
+            // CloseIsFromButton = true;
+            // Close();
         }
 
         public void BtnRestart_Click(object sender, RoutedEventArgs e) {

Ink Canvas/MainWindow_cs/MW_TrayIcon.cs

@@ -54,7 +54,11 @@ namespace Ink_Canvas
 
         private void CloseAppTrayIconMenuItem_Clicked(object sender, RoutedEventArgs e) {
             var mainWin = (MainWindow)Application.Current.MainWindow;
-            if (mainWin.IsLoaded) mainWin.BtnExit_Click(null,null);
+            if (mainWin.IsLoaded) {
+                App.IsAppExitByUser = true;
+                Application.Current.Shutdown();
+                // mainWin.BtnExit_Click(null,null);
+            }
         }
 
         private void RestartAppTrayIconMenuItem_Clicked(object sender, RoutedEventArgs e) {