fix: chat accepts quotes now

migrations/0051_quote_attachment.down.sql

@@ -0,0 +1,8 @@
+-- Rows of the new kind must go before the old constraint can be restored.
+DELETE FROM message_attachments WHERE kind = 'quote';
+
+ALTER TABLE message_attachments DROP CONSTRAINT IF EXISTS message_attachments_kind_check;
+
+ALTER TABLE message_attachments
+    ADD CONSTRAINT message_attachments_kind_check
+    CHECK (kind IN ('image', 'video', 'audio', 'file', 'link', 'entity'));