Add manage invites page.

fedireads/migrations/0044_siteinvite_user.py

@@ -0,0 +1,21 @@
+# Generated by Django 3.0.3 on 2020-06-02 15:46
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fedireads', '0043_siteinvite'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='siteinvite',
+            name='user',
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL),
+            preserve_default=False,
+        ),
+    ]