Always set cast receivers during migration (#11516)

Jellyfin.Server/Migrations/Routines/AddDefaultCastReceivers.cs

@@ -32,11 +32,8 @@ public class AddDefaultCastReceivers : IMigrationRoutine
     /// <inheritdoc />
     public void Perform()
     {
-        // Only add if receiver list is empty.
+        _serverConfigurationManager.Configuration.CastReceiverApplications =
-        if (_serverConfigurationManager.Configuration.CastReceiverApplications.Length == 0)
+        [
-        {
-            _serverConfigurationManager.Configuration.CastReceiverApplications = new CastReceiverApplication[]
-            {
             new()
             {
                 Id = "F007D354",
@@ -47,9 +44,8 @@ public class AddDefaultCastReceivers : IMigrationRoutine
                 Id = "6F511C87",
                 Name = "Unstable"
             }
-            };
+        ];
 
         _serverConfigurationManager.SaveConfiguration();
     }
 }
-}