Fix flicker issue on re-render in web implementation of Slider component

[landabaso]

Description

This PR addresses an issue with the Slider component where a flicker effect is visible during re-renders, specifically in the web implementation. The flicker was caused by the width being reset during the layout calculation.

Changes Made

• Modified sliderStyle to set the width only if it is not zero using the conditional spread operator.

  const sliderStyle = { zIndex: 1, ...(width !== 0 && { width }) };