fix: restore visible Ko-fi support across screen sizes

public/partials/header.htm

@@ -1,5 +1,9 @@
 <nav class="navbar navbar-expand-lg" :class="{&#x27;navbar-dark&#x27;: isDarkMode}">
   <a class="navbar-brand" href="/">Anonymous <em>GitHub</em></a>
+  <a class="nav-support" href="https://ko-fi.com/tdurieux" target="_blank" rel="noopener" title="Donate on Ko-fi to help cover hosting costs" aria-label="Donate on Ko-fi to help cover hosting costs">
+    <svg class="ui-icon" aria-hidden="true"><use href="#ui-icon-heart"></use></svg>
+    <span class="nav-support-label">Support</span>
+  </a>
   <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
     <span class="navbar-toggler-icon"></span>
   </button>