ui/logic/data: show parse errors in CodeView

This change saves the errors while parsing in the Storage and displays them in the CodeView. The error messages can be
read in the tooltip on hovering. The error count is visible in the status bar.

src/lib/component/controller/SearchController.cpp

@@ -32,6 +32,11 @@ void SearchController::handleMessage(MessageFind* message)
 	getView()->setFocus();
 }
 
+void SearchController::handleMessage(MessageFinishedParsing* message)
+{
+	getView()->setText("");
+}
+
 void SearchController::handleMessage(MessageRefresh* message)
 {
 	getView()->refreshView();