[#43] MemberAdminWindow: Do not use Context from ContextWindow any more

Elwig/Documents/MemberDataSheet.cs

@@ -11,11 +11,13 @@ namespace Elwig.Documents {
 
         public Season Season;
         public Dictionary<string, MemberBucket> MemberBuckets;
+        public IEnumerable<AreaCom> ActiveAreaCommitments;
 
         public MemberDataSheet(Member m, AppDbContext ctx) : base($"{Name} {m.AdministrativeName}", m) {
             DocumentId = $"{Name} {m.MgNr}";
             Season = ctx.Seasons.ToList().MaxBy(s => s.Year) ?? throw new ArgumentException("invalid season");
             MemberBuckets = ctx.GetMemberBuckets(Utils.CurrentYear, m.MgNr).GetAwaiter().GetResult();
+            ActiveAreaCommitments = m.ActiveAreaCommitments(ctx);
         }
     }
 }