How might I add a context menu to a tree item or a table row? For example, something like this:

{:fx/type  :tree-item
 :value    1
 :children [2 3 4 5]
 :context-menu {:fx/type :context-menu
                :items   [{:fx/type   :menu-item
                           :text      "Some menu item..."
                           :on-action {:event/type ::show-value}}]}}