message: Adds support for mouse enter/leave
diff: @@ -23,15 +23,21 @@ const GridItem = ({
  children,
  gutterSpacing = 4,
  onDrag = () => {},
  + onMouseEnter = () => {},
  + onMouseLeave = () => {},
  ...rest
  }: {
  children: ReactNode
  gutterSpacing?: number
  onDrag?: Function
  + onMouseEnter?: Function
  + onMouseLeave?: Function
  }) => (
  <Container
  gutterSpacing={gutterSpacing}
  onDrag={onDrag}
  + onMouseEnter={onMouseEnter}
  + onMouseLeave={onMouseLeave}
  variableHeight
  {...rest}
  >
  