Can't quickly open classes and tests in the Demo

[Eliott-Guevel]

The window opened by the Open Bloc Demo option located in the Help tab shows tests and classes correctly, but there's no option to double-click or right-click and select an option on a class/test in the left column of the window in order to quickly open it in the System Browser.

As reference I implemented this exact feature for a tree (classes and methods) in another project, see here
see the interfaceTreeAdd: interfaces forFrame: interfaceFrame roleInterface: roleInterface method, precisely the whenActivatedDo: part

interfaceTree := self newTree
			                 children: [ :i | interface methodDict keys ];
			                 displayIcon: [ :aClass |
				                 self iconNamed: aClass systemIconName ];
			                 roots: { interface };
			                 expandRoots;
			                 activateOnDoubleClick;
			                 whenActivatedDo: [ :eventServiceParameter |
				                 eventServiceParameter isTrait
					                 ifTrue: [
						                 eventServiceParameter selectedItem browse ]
					                 ifFalse: [
						                 compiledMethod := CompiledMethod new.
						                 compiledMethod methodClass: interface.
						                 compiledMethod selector: eventServiceParameter.
						                 compiledMethod browse ] ].

[Eliott-Guevel]

And I also noticed that the canva variable of BlDemoPresenter should be spelled canvas
(the initializeCanvaPresenter method sould also be renamed initializeCanvasPresenter)