Fix controller reference in MvcMovie10 layout to match tutorial flow (#36708)

* Initial plan

* Fix layout controller reference in MvcMovie10 sample

Co-authored-by: wadepickett <10985336+wadepickett@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: wadepickett <10985336+wadepickett@users.noreply.github.com>

Author: Copilot

aspnetcore/tutorials/first-mvc-app/start-mvc/sample/MvcMovie10/Views/Shared/_Layout.cshtml

@@ -12,7 +12,7 @@
     <header>
         <nav class="navbar navbar-expand-sm navbar-toggleable-sm navbar-light bg-white border-bottom box-shadow mb-3">
             <div class="container-fluid">
-                <a class="navbar-brand" asp-area="" asp-controller="Movies" asp-action="Index">Movie App</a>
+                <a class="navbar-brand" asp-area="" asp-controller="HelloWorld" asp-action="Index">Movie App</a>
                 <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target=".navbar-collapse" aria-controls="navbarSupportedContent"
                         aria-expanded="false" aria-label="Toggle navigation">
                     <span class="navbar-toggler-icon"></span>