MLKitView typing: Hide overriden on-function

[Acksell]

Getting the following error when registering the viewbase using svelte-native:

Types of construct signatures are incompatible.
  Type 'new () => MLKitView' is not assignable to type 'new () => ViewBase'.
    Construct signature return types 'MLKitView' and 'ViewBase' are incompatible.
      The types of 'on' are incompatible between these types.
        Type '(event: "detection", callback: (args: DetectionEvent) => void, thisArg?: any) => any' is not assignable to type '{ (eventNames: string, callback: (data: EventData) => void, thisArg?: any): any; (event: "propertyChange", callback: (data: EventData) => void, thisArg?: any): any; }'.
          Types of parameters 'event' and 'event' are incompatible.
            Type '"propertyChange"' is not assignable to type '"detection"'. ts(2419)

Resolved by adding @hidden directive for the overridden on-function.

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