Models: Use nameof() in InverseProperty

Elwig/Models/Entities/PaymentMember.cs

@@ -48,7 +48,7 @@ namespace Elwig.Models.Entities {
         [ForeignKey("MgNr")]
         public virtual Member Member { get; private set; } = null!;
 
-        [InverseProperty("Payment")]
+        [InverseProperty(nameof(Credit.Payment))]
         public virtual Credit? Credit { get; private set; }
     }
 }