Use service layer function in DonationLinkForm

Use the service layer function for updating donation links in the form
responsible for updating team's donation links.

Refs. TS-2314

Author: Roffenlund

django/thunderstore/repository/forms/team.py

@@ -15,6 +15,8 @@
 )
 from thunderstore.repository.validators import PackageReferenceComponentValidator
 
+from thunderstore.api.cyberstorm.services.team import update_team
+
 User = get_user_model()
 
 
@@ -188,5 +190,13 @@ def clean(self):
 
     @transaction.atomic
     def save(self, **kwargs):
-        self.instance.ensure_user_can_edit_info(self.user)
-        return super().save(**kwargs)
+        try:
+            update_team(
+                agent=self.user,
+                team=self.instance,
+                donation_link=self.cleaned_data["donation_link"],
+            )
+        except ValidationError as e:
+            self.add_error(None, e)
+            return None
+        return self.instance

django/thunderstore/repository/views/team_settings.py

@@ -26,7 +26,6 @@
     DonationLinkTeamForm,
     EditTeamMemberForm,
     RemoveTeamMemberForm,
-    TeamMemberRole,
 )
 from thunderstore.repository.models import Team, TeamMember, reverse