Add migration for current_change

aleksis/apps/chronos/migrations/0021_lessonevent_current_change.py

+# Generated by Django 5.1.3 on 2024-11-30 10:41
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('chronos', '0020_add_global_permissions'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='lessonevent',
+            name='current_change',
+            field=models.BooleanField(default=False, verbose_name='Is this a current change?'),
+        ),
+    ]