Improve calendar event title readbility

src/plainui/jinja2/plainui/components/calendar.html

@@ -45,11 +45,11 @@
                             }, entry.event.id) }}
                             {% endif %}
                             <figure class="p-0 my-0 mx-1 d-flex flex-column hub-fahrplan__room-event" style="height: {{ h(entry.minutes) }};">
-                                <h2 class="px-1 mb-1 hub-fahrplan__event_title text-center bg-secondary text-dark">{{entry.event.name}}
+                                <div class="p-1 mb-1 hub-fahrplan__event_title text-center bg-secondary text-dark fw-bold">{{entry.event.name}}
                                     {% if entry.event.language %}
                                         <span class="fs-medium font-sans-serif font-weight-normal text-lowercase"> ({{entry.event.language}})</span>
                                     {% endif %}
-                                </h2>
+                                </div>
                                 <div class="p-1">
                                     {% if entry.event.track_name %}
                                         <p class="fs-medium font-weight-bold">{{entry.event.track_name}}</p>