Sort contact lists appropriately

On the uploads page this should be newest first, same as the scheduled
and immediate jobs on this page.

On the _choose_ page this should be alphabetical, same as choosing a
template.

app/main/views/send.py

@@ -42,7 +42,7 @@ from app.main.forms import (
     SetSenderForm,
     get_placeholder_form_instance,
 )
-from app.models.contact_list import ContactList, ContactLists
+from app.models.contact_list import ContactList, ContactListsAlphabetical
 from app.models.user import Users
 from app.s3_client.s3_csv_client import (
     s3download,
@@ -506,7 +506,7 @@ def choose_from_contact_list(service_id, template_id):
     )
     return render_template(
         'views/send-contact-list.html',
-        contact_lists=ContactLists(
+        contact_lists=ContactListsAlphabetical(
             current_service.id,
             template_type=template.template_type,
         ),

app/models/contact_list.py

@@ -1,3 +1,4 @@
+from functools import partial
 from os import path
 
 from flask import abort, current_app
@@ -130,10 +131,23 @@ class ContactLists(ModelList):
 
     client_method = contact_list_api_client.get_contact_lists
     model = ContactList
+    sort_function = partial(
+        sorted,
+        key=lambda item: item['created_at'],
+        reverse=True,
+    )
 
     def __init__(self, service_id, template_type=None):
         super().__init__(service_id)
-        self.items = [
+        self.items = self.sort_function([
             item for item in self.items
             if template_type in {item['template_type'], None}
-        ]
+        ])
+
+
+class ContactListsAlphabetical(ContactLists):
+
+    sort_function = partial(
+        sorted,
+        key=lambda item: item['original_file_name'].lower(),
+    )