Fixed: Restoring large database backups

Remove Kestrel's default 28.6MB upload limit

(cherry picked from commit 286b083da429a49638c9121b1dda058b5425c476)

src/NzbDrone.Host/WebHost/WebHostController.cs

@@ -77,9 +77,10 @@ namespace NzbDrone.Host
                     }
                 })
                 .ConfigureKestrel(serverOptions =>
-                    {
-                        serverOptions.AllowSynchronousIO = true;
-                    })
+                {
+                    serverOptions.AllowSynchronousIO = true;
+                    serverOptions.Limits.MaxRequestBodySize = null;
+                })
                 .ConfigureLogging(logging =>
                 {
                     logging.AddProvider(new NLogLoggerProvider());