logic: Refactored undo redo stack

* Store MessageActivateTokens instead of original view messages
* Renamed FeatureController to ActivationController
* Remove all non-activation messages from undo redo stack after reindexing project
* Added MessageShowReference to undo redo stack
* Added MessageScrollGraph for restoring graph view scroll position
* Fixed MessageGraphNodeMove not saved for bundles
* Refactored tokenIds and nodeNames in SearchMatch and MessageActivateTokens
* Refactored SearchController
* Fixed file expansion on undoing/redoing after switching code view mode
* Fixed redundant graph animation due to present qualifier nodes
* Fixed no restoring of graph node expansion when showing overview in between

src/lib_gui/qt/element/QtCodeNavigator.h

@@ -11,6 +11,7 @@
 #include "utility/messaging/MessageListener.h"
 #include "utility/messaging/type/MessageCodeReference.h"
 #include "utility/messaging/type/MessageFinishedParsing.h"
+#include "utility/messaging/type/MessageShowReference.h"
 #include "utility/messaging/type/MessageSwitchColorScheme.h"
 #include "utility/messaging/type/MessageWindowFocus.h"
 
@@ -23,6 +24,7 @@ class QtCodeNavigator
 	: public QWidget
 	, public MessageListener<MessageCodeReference>
 	, public MessageListener<MessageFinishedParsing>
+	, public MessageListener<MessageShowReference>
 	, public MessageListener<MessageSwitchColorScheme>
 	, public MessageListener<MessageWindowFocus>
 {
@@ -62,6 +64,8 @@ public:
 	bool hasErrors() const;
 	size_t getFatalErrorCountForFile(const FilePath& filePath) const;
 
+	bool isInListMode() const;
+
 	void showActiveSnippet(
 		const std::vector<Id>& activeTokenIds, std::shared_ptr<TokenLocationCollection> collection, bool scrollTo);
 
@@ -147,6 +151,7 @@ private:
 
 	void handleMessage(MessageCodeReference* message);
 	void handleMessage(MessageFinishedParsing* message);
+	void handleMessage(MessageShowReference* message);
 	void handleMessage(MessageSwitchColorScheme* message);
 	void handleMessage(MessageWindowFocus* message);