message: a11y: add ACCESSIBLE_KEYS const
  & relevant KeyCode enum
diff: import { KeyboardEvent } from 'react';
  +export enum KeyCode {
  + ENTER = 'Enter',
  + SPACE = 'Space',
  + TAB = 'Tab',
  +}
  +
  +interface AccessibleKey {
  + code: KeyCode;
  + key: string[];
  + keyCode: number;
  +}
  +
  +export const ACCESSIBLE_KEYS: AccessibleKey[] = [
  + {
  + code: KeyCode.ENTER,
  + key: ['Enter'],
  + keyCode: 13,
  + },
  + {
  + code: KeyCode.SPACE,
  + key: ['Space', 'Spacebar', ' '],
  + keyCode: 32,
  + },
  + {
  + code: KeyCode.TAB,
  + key: ['Tab'],
  + keyCode: 9,
  + },
  +];
  export function shouldTriggerClickOnEnterOrSpace(e: KeyboardEvent<HTMLElement>) {
  const { target, key } = e;
  const el = target as HTMLElement;
  