Mapping For ^] Unexpected on “Français (France)” Keyboard, Cannot Add Custom Press

### Checklist

- [x] Using latest version on the [App Store](http://itunes.apple.com/app/id1156707581)
- [x] Read the [docs](http://blink.sh/docs/)
- [x] Searched for [existing GitHub issues](https://github.com/blinksh/blink/issues)

### Configuration

- Blink: v14.0.3.370 (App Store). Nov 17 2021
- iOS 15.2

### Describe the bug

While using Blink with the “Français (France)” keyboard, by default, `^]` is sent by pressing `Control` and `5` which is somehow weird and unexpected, as on a Mac using Terminal.app the key is sent using the correct keys.

I tried working around the issue by adding a Custom Press for `Control` and `$` (which is where the `]` is located on the Azerty layout) only to find out that this seems like the only key combination that cannot be registered on the “Add Press” screen (it behaves as if no key has been pressed).

Reproduce the issue in Blink v14.0.3.370 on iOS 15.2 with the “Français (France)” keyboard. Trace the keyboard mapping and Add Press behavior for Control+5 and Control+$; done means ^] is sent using the expected keys and Control+$ can be registered as a custom press.

Written by the indexing model from the issue text.