Email needs to be an email to create account (BE)

00-backend/src/main/java/de/htwsaar/webshop/repository/entities/Account.java

@@ -1,6 +1,7 @@
 package de.htwsaar.webshop.repository.entities;
 
 import jakarta.persistence.*;
+import jakarta.validation.constraints.Email;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
@@ -23,6 +24,7 @@ public class Account {
     private Customer customer;
 
     @Column(nullable = false, unique = true)
+    @Email
     private String email;
 
     @Column(nullable = false)