added admin page

Views/header.phtml

@@ -16,6 +16,9 @@
                 <ul>
                     <li><a href="?controller=Welcome&do=showWelcome">Welcome!</a></li>
                     <li><a href="?controller=Notes&do=showNotes">Notes</a></li>
+                    <?php if (isset($_SESSION['role']) && $_SESSION['role'] === 'admin'): ?>
+                        <li><a href="?controller=Notes&do=fileManager">File Manager</a></li>
+                    <?php endif; ?>
                 </ul>
             </nav>
 
@@ -25,7 +28,6 @@
                     <form id="logout-form" method="POST" style="display: inline;">
                          <a class="icon-button" href="?controller=User&do=logoutUser">→</a>
                     </form>
-                    <!-- <button class="icon-button" title="More options">⋮</button> -->
                 </div>
             <?php else: ?>
                 <div class="user-info">