Extract date rendering into per-feature Date components

Elternbeirat.Web/Features/Embeds/EventsEmbed.razor

@@ -1,12 +1,13 @@
-@if (_upcoming.Count > 0)
+@using Elternbeirat.Web.Features.Events
+@if (_upcomingEvents.Count > 0)
 {
     <section class="embed embed-events">
         <h2>Kommende Termine</h2>
         <ul class="event-list">
-            @foreach (var ev in _upcoming)
+            @foreach (var ev in _upcomingEvents)
             {
                 <li>
-                    <time datetime="@ev.Start.ToString("s")">@EventFormat.Range(ev)</time>
+                    <EventDate Value="ev" />
                     <span class="event-title">@ev.Title</span>
                     @if (!string.IsNullOrWhiteSpace(ev.Location))
                     {