Window ignores first click when opened with mb.window.showInactive() (MacOS)

Description

Since upgrading from menubar 5.2.3 to 7.1.0, if opening menubar's window using mb.window.showInactive() so to not steal focus, the first click will no longer interact with the browser window.

Steps to Reproduce the Problem

1. Configure menubar's window so it contains html page with a button.
2. Use an event (e.g. keyboard shortcut) to trigger mb.window.showInactive() while another OS application has focus.
3. Try and click on the button with 1 click.

Expected Behaviour

The first click should interact with the UI and click the button, as it does with Menubar 5.2.3

Actual Behaviour

Observe the first click only focuses the window, and does not click the button. A 2nd click is required to action the button.

Specifications

• Menubar version: 7.1.0
• Platform: MacOS Mojave 10.14.6
• Electron version: 7.1.7

Other information

After upgrading from 5.2.3 to 7.1.0, the method used to initialise menubar had to be changed. Posting the code changes here in case it relates to the issue.

v5.2.3 initialisation

const menubar = require('menubar');

const mb = menubar({webPreferences: {nodeIntegration: true}});
mb.setOption('preload-window', true);
mb.setOption('height', 200);
mb.setOption('alwaysOnTop', true);
mb.setOption('icon', app.getAppPath() + '/assets/IconTemplate.png')  // Set app icon
mb.setOption('index', url.format({ // Set the initial page
  pathname: path.join(app.getAppPath(), '/src/notification.html'), 
  protocol: 'file:',
  slashes: true
}))

v7.1.0 initialisation

const {menubar} = require('menubar');

 const mb = menubar({preloadWindow: true,
                     browserWindow:{
                       webPreferences: {nodeIntegration: true},
                       height:200,
                     },
                     alwaysOnTop:true,
                     icon: app.getAppPath() + '/assets/IconTemplate.png',
                     index: url.format({
                       pathname: path.join(app.getAppPath(), '/src/notification.html'),
                       protocol: 'file:',
                       slashes: true
                     })
});

Reproduce the first-click behavior on macOS using mb.window.showInactive(), comparing the Menubar 5.2.3 and 7.1.0 initialization shown in the issue. Start by tracing the showInactive() entry point and window creation options; done when the first click activates the button instead of only focusing the window.