Create DB migration to add new fields and change default cross-encoder

src/khoj/database/migrations/0037_searchmodelconfig_bi_encoder_docs_encode_config_and_more.py

@@ -0,0 +1,32 @@
+# Generated by Django 4.2.10 on 2024-04-24 04:19
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("database", "0036_delete_offlinechatprocessorconversationconfig"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="searchmodelconfig",
+            name="bi_encoder_docs_encode_config",
+            field=models.JSONField(default=dict),
+        ),
+        migrations.AddField(
+            model_name="searchmodelconfig",
+            name="bi_encoder_model_config",
+            field=models.JSONField(default=dict),
+        ),
+        migrations.AddField(
+            model_name="searchmodelconfig",
+            name="bi_encoder_query_encode_config",
+            field=models.JSONField(default=dict),
+        ),
+        migrations.AlterField(
+            model_name="searchmodelconfig",
+            name="cross_encoder",
+            field=models.CharField(default="mixedbread-ai/mxbai-rerank-xsmall-v1", max_length=200),
+        ),
+    ]