DeliveryAdminWindow: Show delivery (part) comments in list

Elwig/Models/Entities/Delivery.cs

@@ -63,6 +63,11 @@ namespace Elwig.Models.Entities {
         [Column("comment")]
         public string? Comment { get; set; }
 
+        [NotMapped]
+        public string[] Comments => [.. Parts.Select(p => p.Comment).Prepend(Comment).Where(c => c != null).Cast<string>()];
+        [NotMapped]
+        public string CommentsString => string.Join(" / ", Comments);
+
         [Column("ctime"), DatabaseGenerated(DatabaseGeneratedOption.Computed)]
         public long CTime { get; set; }
         [NotMapped]

Elwig/Windows/DeliveryAdminWindow.xaml

@@ -295,6 +295,7 @@
                     <DataGridTextColumn Header="LsNr." Binding="{Binding LsNr}" Width="120"/>
                     <DataGridTextColumn Header="Mitglied" Binding="{Binding Member.AdministrativeName}" Width="180"/>
                     <DataGridTextColumn Header="Zu-/Abschläge" Binding="{Binding FilteredModifiersString}" Width="150"/>
+                    <DataGridTextColumn Header="Kommentar" Binding="{Binding CommentsString}" Width="150"/>
                 </DataGrid.Columns>
             </DataGrid>