Make genre optional

vrobbler/apps/books/migrations/0014_alter_book_genre.py

@@ -0,0 +1,26 @@
+# Generated by Django 4.1.7 on 2023-04-18 02:33
+
+from django.db import migrations
+import taggit.managers
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("scrobbles", "0040_alter_scrobble_media_type"),
+        ("books", "0013_page_user"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="book",
+            name="genre",
+            field=taggit.managers.TaggableManager(
+                blank=True,
+                help_text="A comma-separated list of tags.",
+                through="scrobbles.ObjectWithGenres",
+                to="scrobbles.Genre",
+                verbose_name="Tags",
+            ),
+        ),
+    ]