mqtt improvements

new device page

src/resources/wwwroot/dashboard.html

@@ -98,6 +98,15 @@
                             </p>
                         </a>
                     </li>
+
+                    <li id="devicepanel" class="nav-item">
+                        <a href="device.html" class="nav-link">
+                            <i class="nav-icon fas fa-plus-circle"></i>
+                            <p>
+                                Devices
+                            </p>
+                        </a>
+                    </li>
                 </ul>
             </nav>
             <!-- /.sidebar-menu -->