message: refactor(number-input): use isNull util
diff: @@ -5,6 +5,7 @@ import {
  callAllHandlers,
  focus,
  isBrowser,
  + isNull,
  maxSafeInteger,
  mergeRefs,
  minSafeInteger,
  @@ -239,7 +240,7 @@ export function useNumberInput(props: UseNumberInputProps = {}) {
  */
  const _getAriaValueText = () => {
  const text = getAriaValueText?.(counter.value)
  - if (text != null) {
  + if (!isNull(text)) {
  return text
  }
  