Add history filter for people being removed due to inactivity

User story: A person responsible for following up with the people being removed due to inactivity from the group wants to easily find these events.

Complexity: I guess it is easy as many other history filters do exist. There is a “Member removed” filter, but it only refers to people being removed due to group decisions.

Outcomes (or what needs to be done to move forward): Agree on name of new filter. I suggest “Inactive member removed”.