click label at the right side of switcherIcon (the icon of non-leaf node) instead switcherIcon to expand/collapse sub-tree

[redguardtoo]

as title.

Currently I can only click the icon to expand/collapse sub-tree.

[romantseg]

@redguardtoo I was searching for the same answer, essentially you can do this through controlling expandedKeys and using some dropdown APIs (https://codesandbox.io/s/lively-surf-rjo2t)