Normalize screen groups navigation label

src/web/views/shared/layout.hbs

@@ -181,7 +181,7 @@
                   <li class="nav-item">
                     <a class="nav-link {{#if (eq active 'screens')}}active{{/if}}" href="/screens">
                       <i class="nav-icon bi bi-display"></i>
-                      <p>Screen Groups</p>
+                      <p>Screen groups</p>
                     </a>
                   </li>
                 {{/if}}