message: fix invalid import
diff: -import {COMMON, LAYOUT, TYPOGRAPHY, FLEX_CONTAINER, FLEX_ITEM, POSITION} from '../../../src/system-props.js'
  +import {COMMON, LAYOUT, TYPOGRAPHY, FLEX_CONTAINER, FLEX_ITEM, POSITION} from '../../../src/constants.js'
  import {PropsList} from '../../doc-components'
  # System Props
  