Add missing prop validation for React.memo

[kazah96]

Currently doesnt show anything

import React from 'react';

const HeaderBalance = React.memo(({ cryptoCurrency }) => (
  <div className="header-balance">
    <div className="header-balance__balance">
      BTC
      {cryptoCurrency}
    </div>
  </div>
));

export default HeaderBalance;

[alexzherdev]

This looks similar to #1841 - could probably be done as one fix.