logic: Refactored namespace activation

* show namespace name in search view when activated
* show namespace definitions in code view when activated
* no children in namespace
* no implicit nodes in overview or namespace
* Show a maximum of 10 open snippets
* Fixed bug causing nodes in GraphView to be stacked at 0,0

src/lib/utility/messaging/type/MessageActivateTokens.h

@@ -34,7 +34,6 @@ public:
 	}
 
 	const std::vector<Id> tokenIds;
-	std::vector<Id> originalTokenIds;
 
 	bool isEdge;
 	bool isAggregation;