refactor dbcontext lifetime (#258)

* refactor create playout handler

* refactor get all playouts handler

* refactor delete playout handler

* remove dead code

* ignore unnamed artists for collections

* more repository cleanup

* more schedule items refactoring

* more playout refactoring

* refactor playout builder

* refactor ffmpeg profiles

* more ffmpeg profile refactoring

* rework resolutions

* refactor media collections

* refactor config elements

* update changelog

* more cleanup

ErsatzTV.Application/Playouts/Mapper.cs

@@ -6,25 +6,12 @@ namespace ErsatzTV.Application.Playouts
 {
     internal static class Mapper
     {
-        internal static PlayoutViewModel ProjectToViewModel(Playout playout) =>
-            new(
-                playout.Id,
-                Project(playout.Channel),
-                Project(playout.ProgramSchedule),
-                playout.ProgramSchedulePlayoutType);
-
         internal static PlayoutItemViewModel ProjectToViewModel(PlayoutItem playoutItem) =>
             new(
                 GetDisplayTitle(playoutItem.MediaItem),
                 playoutItem.StartOffset,
                 GetDisplayDuration(playoutItem.MediaItem));
 
-        private static PlayoutChannelViewModel Project(Channel channel) =>
-            new(channel.Id, channel.Number, channel.Name);
-
-        private static PlayoutProgramScheduleViewModel Project(ProgramSchedule programSchedule) =>
-            new(programSchedule.Id, programSchedule.Name);
-
         private static string GetDisplayTitle(MediaItem mediaItem)
         {
             switch (mediaItem)