Adds customizable invite request copy

bookwyrm/migrations/0098_auto_20210918_2238.py

@@ -0,0 +1,27 @@
+# Generated by Django 3.2.4 on 2021-09-18 22:38
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("bookwyrm", "0097_auto_20210917_1858"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="sitesettings",
+            name="invite_request_text",
+            field=models.TextField(
+                default="If your request is approved, you will receive an email with a registration link."
+            ),
+        ),
+        migrations.AlterField(
+            model_name="sitesettings",
+            name="registration_closed_text",
+            field=models.TextField(
+                default='We aren\'t taking new users at this time. You can find an open instance at <a href="https://joinbookwyrm.com/instances">joinbookwyrm.com/instances</a>.'
+            ),
+        ),
+    ]