Products Rendering, removal of deprecated files

repositories/categories.py

@@ -12,7 +12,7 @@ class CategoriesRepository:
         stmt = select(Category).where(Category.id == category_id)
         return await session.scalar(stmt)
 
-    async def get_category_by_parent_id(
+    async def get_categories_by_parent_id(
         self, session: AsyncSession, parent_id: Optional[int] = None
     ) -> list[Category]:
         stmt = select(Category).where(Category.parent_id == parent_id)