Only show relevant permissions on the team members page

Since users of broadcast services will always have the view dashboard
permission and never have the API keys permission we can hide these. And
we should re-label the permissions to make sense in the context of
broadcasting.

app/main/views/manage_users.py

@@ -27,7 +27,7 @@ from app.main.forms import (
     PermissionsForm,
     SearchUsersForm,
 )
-from app.models.roles_and_permissions import permissions
+from app.models.roles_and_permissions import broadcast_permissions, permissions
 from app.models.user import InvitedUser, User
 from app.utils import is_gov_user, redact_mobile_number, user_has_permissions
 
@@ -41,7 +41,9 @@ def manage_users(service_id):
         current_user=current_user,
         show_search_box=(len(current_service.team_members) > 7),
         form=SearchUsersForm(),
-        permissions=permissions,
+        permissions=(
+            broadcast_permissions if current_service.has_permission('broadcast') else permissions
+        ),
     )