Minor cleanup

Fellowship/Web/Layout/MainLayout.razor

@@ -5,10 +5,6 @@
     </div>
 
     <main>
-        <div class="top-row px-4">
-            <a href="https://learn.microsoft.com/aspnet/core/" target="_blank">About</a>
-        </div>
-
         <article class="content px-4">
             @Body
         </article>

Fellowship/Web/Layout/NavMenu.razor

@@ -14,16 +14,6 @@
                 <span class="bi bi-house-door-fill-nav-menu" aria-hidden="true"></span> Home
             </NavLink>
         </div>
-        <div class="nav-item px-3">
-            <NavLink class="nav-link" href="counter">
-                <span class="bi bi-plus-square-fill-nav-menu" aria-hidden="true"></span> Counter
-            </NavLink>
-        </div>
-        <div class="nav-item px-3">
-            <NavLink class="nav-link" href="weather">
-                <span class="bi bi-list-nested-nav-menu" aria-hidden="true"></span> Weather
-            </NavLink>
-        </div>
         <div class="nav-item px-3">
             <NavLink class="nav-link" href="keyboard">
                 <span class="bi bi-keyboard-nav-menu" aria-hidden="true"></span> Keyboard