text: export const REQUEST_BOARD_UPDATE = 'REQUEST_BOARD_UPDATE'
  export const BOARD_UPDATE_RECEIVED = 'BOARD_UPDATE_RECEIVED'
  export const REQUEST_HIGHSCORE_UPDATE = 'REQUEST_HIGHSCORE_UPDATE'
  export const HIGHSCORE_UPDATE_RECEIVED = 'HIGHSCORE_UPDATE_RECEIVED'
  export const CHANGE_WINDOW_SIZE = 'CHANGE_WINDOW_SIZE'