change incentive plans total weight quota with rancher incentive plan - change id to rancher plan and add incentive plan id

apps/herd/models.py

@@ -1,5 +1,6 @@
-from apps.core.models import BaseModel
 from apps.authentication import models as auth_models
+from apps.core.models import BaseModel
+
 from django.db import models
 
 
@@ -136,5 +137,4 @@ class Rancher(BaseModel):
         return f'rancher: {self.first_name} {self.last_name}'
 
     def save(self, *args, **kwargs):
-        return super(Rancher, self).save(*args, **kwargs)
-
+        return super(Rancher, self).save(*args, **kwargs)