Fix the handling of of the kernel change from "quiet" to "low-power"

A coming kernel change will convert "quiet" to "low-power" due to how
platform_profile can now have multiple registered handlers.
(kernel 6.14 est)

Fixes #609

rog-control-center/ui/types/fan_types.slint

@@ -4,6 +4,7 @@ export enum Profile {
     Balanced,
     Performance,
     Quiet,
+    LowPower,
 }
 
 export enum FanType {