Update username verify view to use new database.

cogs/commands/data_management.py

@@ -76,6 +76,7 @@ class DataManagementCog(commands.Cog, name="Table Management"):
         stmt = select(Score).where(Score.UserName == username)
         for score in session.scalars(stmt):
             session.delete(score)
+        session.commit()
 
         group_ids = select(Category.GroupId).where(Category.CategoryId.in_(category_ids)).subquery()