Render custom component above thumb

## Ask your Question

i have requirement to render custom component with dynamic value above the thumb like this


I took a look at the [code](https://github.com/callstack/react-native-slider/blob/main/package/src/components/TrackMark.tsx) and there is no way for now to render custom component/element above the thumb.

maybe we can do something like this?

```diff
export const SliderTrackMark = ({
isTrue,
thumbImage,
StepMarker,
+ index
+ renderAboveThumbComponent
}: TrackMarksProps) => {
return (

{StepMarker ? : null}
{thumbImage && isTrue ? (
<>
+ {renderAboveThumbComponent(index)}




) : null}

);
};

```

API name inspired by https://github.com/miblanchard/react-native-slider/blob/cb80d87c7f80f27856613e18459c80c70d638df7/README.md?plain=1#L88

maybe one consideration, from windows example
there is already a box with step value rendered above the thumb.

is it gonna be a conflict if we implement this?
or is there a better way to handle this case?