refactor(database): rename filename to find the models by table name easily

app/database/beatmapset_ratings.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 from app.database.beatmapset import Beatmapset
-from app.database.lazer_user import User
+from app.database.user import User
 
 from sqlmodel import BigInteger, Column, Field, ForeignKey, Relationship, SQLModel