Moved migration routines to their own directory

Jellyfin.Server/Migrations/Routines/DisableTranscodingThrottling.cs

@@ -0,0 +1,32 @@
+using System;
+using System.IO;
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Model.Configuration;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+
+namespace Jellyfin.Server.Migrations.Routines
+{
+    /// <summary>
+    /// Updater that takes care of bringing configuration up to 10.5.0 standards.
+    /// </summary>
+    internal class DisableTranscodingThrottling : IUpdater
+    {
+        /// <inheritdoc/>
+        public string Name => "DisableTranscodingThrottling";
+
+        /// <inheritdoc/>
+        public void Perform(CoreAppHost host, ILogger logger)
+        {
+            // Set EnableThrottling to false as it wasn't used before, and in 10.5.0 it may introduce issues
+            var encoding = ((IConfigurationManager)host.ServerConfigurationManager).GetConfiguration<EncodingOptions>("encoding");
+            if (encoding.EnableThrottling)
+            {
+                logger.LogInformation("Disabling transcoding throttling during migration");
+                encoding.EnableThrottling = false;
+
+                host.ServerConfigurationManager.SaveConfiguration("encoding", encoding);
+            }
+        }
+    }
+}