Fix #538: makes the app not to restart in full screen mode

src/main/mainWindow.js

@@ -43,6 +43,7 @@ function createMainWindow(config, options) {
     show: false,
     minWidth: minimumWindowWidth,
     minHeight: minimumWindowHeight,
+    fullscreen: false,
   });
 
   const mainWindow = new BrowserWindow(windowOptions);