Add functionality to the new status "in progress" for tasks

[markusmann-vg]

Kay sent as a comment to https://github.com/hzi-braunschweig/SORMAS-Project/issues/6748

I tested this feature on test-de2.sormas.netzlink.com, 1.75.0-SNAPSHOT (b1baa08) with TASK_GENERATION* featureconfiugrations enabled and Admin + National User roles and noticed the following:

• When a case is created and contains a case investigation task, a new task of the same type is created whenever changing the existing ones status to IN_PROGRESS and saving the case.
  • If this task type is set to in progress, new case investigation tasks should not be created upon saving the case because a user is already working on the existing one.
  • This can also be done for multiple tasks that get set to IN_PROGRESS

This could lead to many duplicate tasks and get confusing to users. Thus, re-opening the ticket.

Originally posted by @kwa20 in https://github.com/hzi-braunschweig/SORMAS-Project/issues/6748#issuecomment-1204867395