Blueprint renderers don't work with ClickArrowToExpand

[floriancargoet]

Describe the bug
When using ClickArrowToExpand and the blueprint renderers, nothing happens when I click the arrow.

To Reproduce
Steps to reproduce the behavior:

• use the blueprint renderers
• use ClickArrowToExpand
• click the arrow to expand
• observe that it doesn't expand

Expected behavior
The node should expand when clicking on its arrow.

[floriancargoet]

I believe the fix is to add arrowProps to the icon:

  renderItemArrow: (props) => (
    <ChevronRight
      className={cx(
        Classes.TREE_NODE_CARET,
        props.context.isExpanded
          ? Classes.TREE_NODE_CARET_OPEN
          : Classes.TREE_NODE_CARET_CLOSED
      )}
      // FIX
      {...(props.context.arrowProps as any)}
    />
  ),

I casted as any because ChevronRight specifies children: never in its type whereas HTMLProps<any> defines children.

[lukasbach]

Fixed, thanks for the implementation suggestion!