Fix minor bugs and improve some model fields

judge/migrations/0191_deprecate_old_org_image.py

@@ -0,0 +1,17 @@
+# Generated by Django 3.2.18 on 2024-08-22 03:12
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0190_deprecate_old_notif_fields"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="organization",
+            name="logo_override_image",
+        ),
+    ]