Reformat migrations

nummi/main/migrations/0010_category_user_invoice_user_snapshot_user_and_more.py

@@ -1,8 +1,8 @@
 # Generated by Django 4.1.4 on 2022-12-29 18:03
 
+import django.db.models.deletion
 from django.conf import settings
 from django.db import migrations, models
-import django.db.models.deletion
 
 
 class Migration(migrations.Migration):

nummi/main/migrations/0011_alter_category_user_alter_invoice_user_and_more.py

@@ -1,8 +1,8 @@
 # Generated by Django 4.1.4 on 2022-12-29 18:14
 
+import django.db.models.deletion
 from django.conf import settings
 from django.db import migrations, models
-import django.db.models.deletion
 
 
 class Migration(migrations.Migration):

nummi/main/migrations/0012_alter_snapshot_date.py

@@ -1,6 +1,7 @@
 # Generated by Django 4.1.4 on 2022-12-29 18:22
 
 import datetime
+
 from django.db import migrations, models