chore: remove /art link from main menu

Author: Anca2022

src/components/pages/FoundationHeader.astro

@@ -75,9 +75,6 @@ import FoundationLogo from "../logos/FoundationLogo.astro";
             <li class="menu-item menu-item--level-2">
               <a href="/podcast" data-umami-event="Site Nav - Podcast">Podcast</a>
             </li>
-            <li class="menu-item menu-item--level-2">
-              <a href="/art" data-umami-event="Site Nav - Art">Art</a>
-            </li>
             <li class="menu-item menu-item--level-2 external">
                 <a
                   href="https://community.interledger.org/"