fix open window when minimize

app/moe-about.js

@@ -25,6 +25,8 @@ var aboutWindow;
 
 function showAboutWindow() {
     if (typeof aboutWindow !== 'undefined') {
+        if (aboutWindow.isMinimized())
+            aboutWindow.restore();
         aboutWindow.focus();
         return;
     }

app/moe-settings.js

@@ -25,6 +25,8 @@ let settingsWindow;
 
 function showSettingsWindow() {
     if (typeof settingsWindow !== 'undefined') {
+        if (settingsWindow.isMinimized())
+            settingsWindow.restore();
         settingsWindow.focus();
         return;
     }