add: Seperate dashboards for all types of users

resources/views/layouts/app.blade.php

@@ -19,17 +19,17 @@
             @include('layouts.navigation')
 
             <!-- Page Heading -->
-            @isset($header)
+            @hasSection('header')
                 <header class="bg-white shadow">
                     <div class="max-w-7xl mx-auto py-6 px-4 sm:px-6 lg:px-8">
-                        {{ $header }}
+                        @yield('header')
                     </div>
                 </header>
-            @endisset
+            @endif
 
             <!-- Page Content -->
             <main>
-                {{ $slot }}
+                @yield('content')
             </main>
         </div>
     </body>