Fix collapse icon and add expand logic#29

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TheChrisTech wants to merge 2 commits intochniter:masterfrom

TheChrisTech:master

Commits on Apr 26, 2022

Fix expand/collapse icons being there if no child nodes.
TheChrisTech
committed

Commits on Apr 28, 2022

Remove Edit and Delete images/logic.
TheChrisTech
committed