Menubar window is incorrectly positioned when opened while the tray icon is hidden on Windows

Description

I'm working on an app that runs in the menubar and opens its window on launch. This works well when the tray icon is visible on Windows, but when it isn't, the window is incorrectly positioned as if it was horizontally centered around x=0. Pinning the tray icon to the tray area solves the problem but it still looks weird to first-time users.

https://user-images.githubusercontent.com/541628/227804777-9f70354c-297a-4ca9-bf76-e884efea9148.mp4

Steps to Reproduce the Problem

I instantiated menubar with these settings:

const mb = menubar({
  preloadWindow: true,
  icon: `AppIcon.png`, // abridged for brevity
  index: "http://localhost:3009/",
  browserWindow: {
    width: 420,
    height: 460,
    resizable: false,
    vibrancy: "popover",
  },
});

mb.on("ready", () => {
  mb.showWindow();
});

Expected Behaviour

When the tray icon's position is unknown, the window should be positioned on the bottom right as a fallback.

Actual Behaviour

The window is partially hidden on the bottom left of the screen.

Specifications

Menubar version: 9.3.0
Platform: Windows
Electron version: v16.2.8

max-mapper / menubar