oembackslash not registering as an input

### My mods and Everest install are up to date

Yes

### I have recreated the bug with only Everest OR a minimum number of mods enabled

Yes

### Describe the bug

oembackslash is not registered by everest, while it does work on vanilla.

### Steps to reproduce

https://github.com/user-attachments/assets/b136aedf-8fd6-45e3-9a4b-106ad0be57d3

### Expected behavior

I expected it to work the same way it does on vanilla.

### Operating System

Windows 11

### Everest Version

6314

### Mods required to reproduce

_No response_

### Additional context

oembackslash is inputted by the button in between left shift and z on the nordic keyboard layout