Update welcome tour, move admin button

src-ui/src/app/components/app-frame/app-frame.component.html

@@ -174,13 +174,6 @@
               </svg><span>&nbsp;<ng-container i18n>Settings</ng-container></span>
             </a>
           </li>
-          <li class="nav-item" tourAnchor="tour.admin">
-            <a class="nav-link" href="admin/" ngbPopover="Admin" i18n-ngbPopover [disablePopover]="!slimSidebarEnabled" placement="end" container="body" triggers="mouseenter:mouseleave" popoverClass="popover-slim">
-              <svg class="sidebaricon" fill="currentColor">
-                <use xlink:href="assets/bootstrap-icons.svg#toggles"/>
-              </svg><span>&nbsp;<ng-container i18n>Admin</ng-container></span>
-            </a>
-          </li>
         </ul>
 
         <h6 class="sidebar-heading px-3 mt-auto pt-4 mb-1 text-muted">