[Bug]: Javascript mode doesn't work

[Forien]

Expected Behavior

Javascript code should be properly highlighted

Current Behavior

Behaves as plaintext

Steps to Reproduce

1. Open Settings
2. Navigate to mode
3. Set it to javascript
4. Save settings
5. Open any editor
6. Observe effects

Context

Version

1.8.3

Foundry VTT Version

11.315

Operating System

Windows 11

Browser / App

Native Electron App

Game System

wfrp4e (dev branch effect-refactor)

Modules Disabled

• I can confirm that disabling all of my other modules doesn't fix this issue.