CM ARGB Controller now functional

* All modes sans Passthru & Direct working
* All colour indexes now enumerating as expected
* Crashes when changing to Passthru from certain modes. Switch to "OFF"
first
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Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f