fix: simplified gorm query

internal/accessor/user_repository/get_user_by_email.go

@@ -15,7 +15,7 @@ func (ur *UserRepository) GetUserByEmail(email string) (*authdomain.User, error)
 		return nil, errors.New("email is empty")
 	}
 
-	if err := ur.DB.Where("email = ?", email).First(&user).Error; err != nil {
+	if err := ur.DB.First(&user, "email = ?", email).Error; err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
 			return nil, errors.New("user not found")
 		}