Fix #124: set title for dark/light toggle

Author: matze

templates/base.html

@@ -36,14 +36,14 @@
           {% block nav_common %}{% endblock %}
           {% block nav_specific %}{% endblock %}
           <div class="nav-item" id="dark-switch">
-            <a href="/theme?pref=dark" class="nav-button" aria-label="switch to dark">
+            <a href="/theme?pref=dark" class="nav-button" title="switch to dark" aria-label="switch to dark">
               <svg aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24">
                 <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 21a9 9 0 0 1-.5-17.986V3c-.354.966-.5 1.911-.5 3a9 9 0 0 0 9 9c.239 0 .254.018.488 0A9.004 9.004 0 0 1 12 21Z"/>
               </svg>
             </a>
           </div>
           <div class="nav-item" id="light-switch">
-            <a href="/theme?pref=light" class="nav-button" aria-label="switch to light">
+            <a href="/theme?pref=light" class="nav-button" title="switch to light" aria-label="switch to light">
               <svg aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24">
                 <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 5V3m0 18v-2M7.05 7.05 5.636 5.636m12.728 12.728L16.95 16.95M5 12H3m18 0h-2M7.05 16.95l-1.414 1.414M18.364 5.636 16.95 7.05M16 12a4 4 0 1 1-8 0 4 4 0 0 1 8 0Z"/>
               </svg>