def goForward(self):
        """
        Moves the cursor to the beginning of the next editor.
        """
        index = self.indexOf(self.currentEditor())
        if index == -1:
            return
        
        next = self.editorAt(index + 1)
        if next:
            next.setFocus()
            next.setCursorPosition(0)
Moves the cursor to the beginning of the next editor.