update intake form of device termination workflow

added two checkboxes that take care of removing config, and cleaning up IPAM made the corresponding steps in the workflow conditional, so they are skipped if unchecked

@simone.spinelli let me know whether this is what you had in mind

gso/services/provisioning_proxy.py

@@ -204,7 +204,7 @@ def _confirm_pp_results(state: State) -> FormGenerator:
     :rtype: {class}`orchestrator.types.FormGenerator`
     """
     if "pp_run_results" not in state:
-        # FIXME: very dirty hack that makes the skipping """work"""
+        # FIXME: dirty hack that makes the skipping """work"""
         return {"pp_did_succeed": True}
 
     successful_run = state["pp_run_results"]["return_code"] == 0