[Backport][Fixes #7740] patch fix reverse urls (#7790)

* [Fixes #7740] Fix reverse urls

Fix reverse urls for get_url_for_app_model and get_url_for_model methods

* Remove unused import

* Fix flake8 formatting

geonode/base/views.py

@@ -60,13 +60,15 @@
 
 
 def get_url_for_app_model(model, model_class):
-    return reverse(f'{model_class._meta.app_label}_{model}_changelist')
+    return reverse(f'admin:{model_class._meta.app_label}_{model}_changelist')
     # was: return f'/admin/{model_class._meta.app_label}/{model}/'
 
+
 def get_url_for_model(model):
-    return reverse(f'{model.lower()}s_{model.lower()}_changelist')
+    return reverse(f'admin:{model.lower()}s_{model.lower()}_changelist')
     # was: f'/admin/{model.lower()}s/{model.lower()}/'
 
+
 def user_and_group_permission(request, model):
     if not request.user.is_superuser:
         raise PermissionDenied

geonode/people/forms.py

@@ -25,8 +25,6 @@
 from django.contrib.auth.forms import UserCreationForm, UserChangeForm
 from django.utils.translation import ugettext as _
 
-from geonode.base.models import ContactRole
-
 from captcha.fields import ReCaptchaField
 
 # Ported in from django-registration