Update: Minor styling changes

Dialogs reposition to center when window resized & Update heading moved
so that background is correctly shown.

Disco.Web/Views/Update/Index.cshtml

@@ -1,8 +1,8 @@
 @model Disco.Web.Models.Update.IndexModel
 @{
-    ViewBag.Title = "Disco Post-Update Configuration";
     Layout = MVC.Shared.Views._PublicLayout;
     
     Html.BundleDeferred("~/Style/Config");
 }
+<h1>Disco Post-Update Configuration</h1>
 @Html.PartialCompiled(typeof(Disco.Web.Areas.Config.Views.Shared.TaskStatus), Model.SessionId)

Disco.Web/Views/Update/Index.generated.cs

@@ -47,7 +47,6 @@ namespace Disco.Web.Views.Update
             
             #line 2 "..\..\Views\Update\Index.cshtml"
   
-    ViewBag.Title = "Disco Post-Update Configuration";
     Layout = MVC.Shared.Views._PublicLayout;
     
     Html.BundleDeferred("~/Style/Config");
@@ -55,7 +54,7 @@ namespace Disco.Web.Views.Update
             
             #line default
             #line hidden
-WriteLiteral("\r\n");
+WriteLiteral("\r\n<h1>Disco Post-Update Configuration</h1>\r\n");
 
             
             #line 8 "..\..\Views\Update\Index.cshtml"