Added delete post page

src/app/db/base_class.py

@@ -1,6 +1,9 @@
 from typing import Any
 
-from sqlalchemy.ext.declarative import as_declarative, declared_attr
+from sqlalchemy.ext.declarative import (
+    as_declarative,
+    declared_attr
+)
 from sqlalchemy import (
     DateTime,
     Column