Using "^" key does not work properly

[Hirmuolio]

Describe the bug

"^" is a dead key on some keyboard layouts and does not work the way you would expect bound keys to work.

Steps To Reproduce

1. Have an action bound to "^".
2. Press "^". Nothing happens.
3. Press some other unrelated key (For example spacebar. Not "a", "i", "o" or other kay that creates different letter when used with "^").
4. Suddenly the "^" press is registered.

Expected behavior

If "^" is bound to an action pressing "^" should do that immediately.

That is probably not easy fix. So the "^" key should probably be replaced with some other key in default keybindings.

Screenshots

Versions and configuration

OS: Windows 10 (Finnish)
Keyboard: Finnish multilingual

Additional context

"^" is a dead key on many keyboard layouts to allow inputting special letters like â, î and ô. This is probably the cause for the problem.
Wikipedia says that the basic US keyboard layout does not have any dead keys directly on the keyboard so "^" probably works without issues on those.

Other dead keys probably also have same problem; "¨", "~", "´", "`". I don't think these are used as default key for anything.

[Qrox]

This is a known issue, see #22664. I think someone mentioned in another issue that the problem lies in the fact that the current code takes character input instead of key code input, but I can't find the exact issue at the moment.