[BUG] Ctrl + Alt + alphabetic key shortcut won't work on Firefox on some international layouts

[zkriszti]

Describe the bug
Ctrl + Alt + [alphabetic key] shortcut won't work on Firefox on some international layouts

To Reproduce
Steps to reproduce the behavior:

1. create a simple React project with react-hotkeys-hook imported
2. create a shortcut (ie. Ctrl + Alt + G)
3. open the project in Firefox and switch to international keyboard layout (ie. reproducible with HUN)
4. the callback function won't fire

Please try and add a codesandbox or stackblitz to reproduce the bug:
https://stackblitz.com/edit/stackblitz-starters-sf7qr6?file=src%2FApp.js

Expected behavior
The callback function should trigger when using the given shortcut.

Desktop (please complete the following information):

• OS: Windows11
• Browser: Firefox Developer Edition 118.0b9 (64-bit)
• Version: 4.4.1

Additional context
Interestingly, the problem is not present when using hotkeys-js. They seem to have a PR that solved the similar problem:
jaywcjlove/hotkeys-js#129
https://github.com/jaywcjlove/hotkeys-js/blob/031bc4d5da583ca07f1e7b26bce83d3da409c6ad/src/index.js#L281