Resolve "Fix migrations"

Closes #138 (closed)

aleksis/apps/chronos/migrations/0007_more_permissions.py

+# Generated by Django 3.2.3 on 2021-05-21 18:44
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('chronos', '0006_indexes'),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name='chronosglobalpermissions',
+            options={'managed': False, 'permissions': (('view_all_room_timetables', 'Can view all room timetables'), ('view_all_group_timetables', 'Can view all group timetables'), ('view_all_person_timetables', 'Can view all person timetables'), ('view_timetable_overview', 'Can view timetable overview'), ('view_lessons_day', 'Can view all lessons per day'))},
+        ),
+    ]