clearIcon in SearchBar component does not theme for dark mode (still appears light)

[Nantris]

Is there an existing issue for this?

• I have searched the existing issues

Explain what you did

Used SearchBar component.

Expected behavior

Expected the icon to re-theme for dark mode, but it does not occur, or if it does it needs adjustment.

Describe the bug

Expected the icon to re-theme for dark mode, but it does not occur, or if it does it needs adjustment.

Steps To Reproduce

Use `SearchBar` component in a dark-themed project.

Screenshots

No response

Your Environment

`npx @rneui/envinfo`

  ```
    Output from `npx @rneui/envinfo` goes here.
  ```