### Godot version

v4.0.beta15.official [4fa6edc88]

### System information

Windows 10

### Issue description

I use a custom keyboard layout (I made it myself), and it has «dead keys» (just like International keyboard layouts have). For example, if I press `'`, nothing happens, but if I press `a` after that, I'll get `á`. If I press `'` and `Space`, I'll get just `'`. And with my layout:
If I press `Shift + .` and then `a`, I will get `ᵄ`.
If I press `Shift + .` and then `Space`, I will get `>`.
If I press `Shift + [` and then `5`, I will get `₅`.
If I press `Shift + [` and then `Space`, I will get `{`.
In beta 14 and before, everything worked fine, but in beta 15 when I press `Shift + .` and `Space`, just nothing happens, I don't get `>`. Same for `Shift + [` and `Space`, I don't get `>`. It seems the problem is with `Shift`, because I still can type `á` (`'` and `a`) or `'` (`'` and `Space`), but not `ä` (`Shift + '` and `a`) or `"` (`Shift + '` and `Space`). In the latter cases I get `á` and `'` as if `Shift` were never pressed.

### Steps to reproduce

Install/add US International keyboard layout or [Extended Latin keyboard layout](https://github.com/godotengine/godot/files/10494466/Layouts.zip) (just run `Extended Latin\ExtLat6\setup.exe`).
Open script editor.
Press `Shift + '`.
Then press `a`.

### Minimal reproduction project

N/A
return;
		}
		if (PowerSetRequest(power_request, POWER_REQUEST_TYPE::PowerRequestSystemRequired) == 0) {
			print_error("Failed to request system sleep override.");
			return;
		}
		if (PowerSetRequest(power_request, POWER_REQUEST_TYPE::PowerRequestDisplayRequired) == 0) {
			print_error("Failed to request display timeout override.");
			return;
		}
	} else {
		PowerClearRequest(power_request, POWER_REQUEST_TYPE::PowerRequestSystemRequired);
		PowerClearRequest(power_request, POWER_REQUEST_TYPE::PowerRequestDisplayRequired);
		CloseHandle(power_request);
		power_request = nullptr;
	}
	keep_screen_on = p_enable;
}
bool DisplayServerWindows::screen_is_kept_on() const {
	return keep_screen_on;
}
Vector<DisplayServer::WindowID> DisplayServerWindows::get_window_list() const {
	_THREAD_SAFE_METHOD_
	Vector<DisplayServer::WindowID> ret;
	for (const KeyValue<WindowID, WindowData> &E : windows) {
		ret.push_back(E.key);
	}
	return ret;
}
DisplayServer::WindowID DisplayServerWindows::get_window_at_screen_position(const Point2i &p_position) const {