chore: add patreon link

server/templates/_frame.html

@@ -15,6 +15,9 @@
                 <li><strong><a href="/" class="contrast">xivpf</a></strong></li>
             </ul>
             <ul>
+                <li>
+                    <a href="https://www.patreon.com/join/ascclemens">patreon</a>
+                </li>
                 <li role="list" dir="rtl">
                     <a href="javascript:void(0)" aria-haspopup="listbox">stats</a>
                     <ul role="listbox">