[Feature] Edit recurring events

[DenisKnecht02]

The current state of the app only allows deleting a recurring event. It is not possible to edit it. It would be great if you could edit the event (maybe with an option to change already created transactions or just the following transactions). In the current state, if for example your rent changes, you need to delete the current event and create a new one. With this feature, you only need to change the amount.