Adding modifiers to a custom key code doesn't show the modifier and allows it to be repeatedly added.

[NabiYang]

Describe the bug
If I use a custom key code, I can click a modifier toggle to add that modifier. It adds the correct number to the key code, but the toggle doesn't turn on. Because the toggle remains off, I can repeatedly click it and continue adding that amount.

To Reproduce

1. Add the custom key code 102 to a key.
2. Click the Shift toggle under Modifiers. It correctly adds 2048 for a total of 2150, but the toggle isn't activated.
3. Click the Shift toggle again.
   ---> It adds another 2048 for a total now of 4198. This process can be repeated.

Expected behavior
I expect the toggle to turn on and disallow adding any more Shift to the key code.

Screenshots

Desktop (please complete the following information):

• OS: Windows 11
• Chrysalis Version: 0.13.3

Additional context
I imagine a solution might be to simply disallow adding modifiers into the custom key code, but this helped me to determine what key code was ultimately needed for a custom key code plus modifiers. It was useful.