logic: rewrote UndoRedoController to differentiate 3 types of priority

ORDER_ACTIVATE for messages that change active symbols
ORDER_ADAPT for graph and code view expanding and collapsing
ORDER_VIEW for scrolling and local symbol activation

src/lib_gui/qt/element/QtCodeFile.cpp

@@ -429,7 +429,8 @@ void QtCodeFile::requestSnippets() const
 		hasErrors(),
 		m_locationFile
 	);
-	msg.undoRedoType = MessageBase::UNDOTYPE_IGNORE;
+
+	msg.setIsReplayed(true);
 	msg.dispatch();
 }