devel/views: Actually save first and last names when they change

Commit e4b211e (Allow users to set their own names, 2021-10-14) tried
to allow users to set their own names.  It correctly handles the latin
name field, but it doesn't end up actually saving changes to the first
and last name fields.

Signed-off-by: Johannes Löthberg <johannes@kyriasis.com>

Author: kyrias

devel/views.py

@@ -234,6 +234,8 @@ def change_profile(request):
                                        instance=profile)
         if form.is_valid() and profile_form.is_valid():
             request.user.email = form.cleaned_data['email']
+            request.user.first_name = form.cleaned_data['first_name']
+            request.user.last_name = form.cleaned_data['last_name']
             if form.cleaned_data['passwd1']:
                 request.user.set_password(form.cleaned_data['passwd1'])
             with transaction.atomic():