added seeding for episodes. update models to store date only in mongodb

server/Models/Episode.cs

@@ -31,6 +31,7 @@ namespace server.Models
         public string[]? WrittenBy { get; set; }
 
         [BsonElement("airDate")]
+        [BsonDateTimeOptions(DateOnly = true)]
         public DateTime? AirDate { get; set; }
 
         [BsonElement("usViewersInMillions")]

server/Models/Season.cs

@@ -16,9 +16,11 @@ namespace server.Models
         public int? NumberOfEpisodes { get; set; }
 
         [BsonElement("dateFirstAired")]
+        [BsonDateTimeOptions(DateOnly = true)]
         public DateTime? DateFirstAired { get; set; }
 
         [BsonElement("dateLastAired")]
+        [BsonDateTimeOptions(DateOnly = true)]
         public DateTime? DateLastAired { get; set; }
     }
 }