Check if applicable

• I have searched the existing issues (required)
• I reproduced the issue with an empty Neovim configuration (init.vim or init.lua)
• I'm willing to help fix the problem and contribute a pull request

Describe the bug

Any chance the fn/international key can be passed through? I speak two languages and I have macOS set to switch between them while using any app, but it seems ShadowVim is intercepting the keypress.

I see #33 but I don't think there's a keycode for just a single Fn keypress (not F1, F2, etc., just Fn), and searched but couldn't find how to map it in vim.

How to reproduce?

1. Add another language and set macOS to use a fn keypress to switch between them.
2. Open ShadowVim and press the key.
3. Nothing happens

Neovim configuration

Empty config

Environment

No response