@Nullable
	public Dockable lookupDockable(@Nonnull Navigable navigable) {
		return childrenToDockable.get(navigable);
	}
Looks up which {@link Dockable} has the given navigable as its {@link Dockable#nodeProperty()}.

@param navigable
		Some navigable UI element.

@return The dockable holding the navigable element, if any exists.
recaf-ui/src/main/java/software/coley/recaf/services/navigation/NavigationManager.java