Reported by @tacit wigeon
Bug Report: macOS App: Ctrl + Space no longer works as shortcut
`Steps to Reproduce`
Open the macOS ChatGPT app
Go to settings
Try to set Ctrl + Space as Keyboard Shortcut
`Expected Result`
Ctrl + Space should be accepted as shortcut
`Actual Result`
the shortcut isn’t accepted, the field stays empty
`Environment`
macOS 15.4, ChatGPT 1.2025.084