Add Agreements changed (number and net sum) for AG and Vipps rec on Home dashboard

[JorgenLjones]

On the Home dashboard we have an monthly overview of agreements drafted, activated, stopped ++ for AvtaleGiro and Vipps Recurring. This does not capture existing agreements where the charge sum is changed, either increased or lowered - which would be useful to know.

[karirk]

Håkon så på dette til stategisamlingen i januar 2024, og de fleste endrer ikke avtalene sine i dag. Kan vurdere å legge det til senere, men virker ikke veldig nyttig i dag.