added frontend and made it usable

frontend/templates/events/list.html.twig

@@ -0,0 +1,55 @@
+{% extends 'base.html.twig' %}
+
+{% block title %}Browse events — VINDN{% endblock %}
+
+{% block head_extra %}
+<style>
+  .toolbar{ display:flex; justify-content:space-between; align-items:center; gap:16px; flex-wrap:wrap; margin-bottom:20px; }
+</style>
+{% endblock %}
+
+{% block body %}
+  <section class="section" style="padding-bottom:0;">
+    <div class="wrap">
+      <p class="eyebrow" style="margin-bottom:10px;">All events</p>
+      <div class="toolbar">
+        <h1 style="font-size:clamp(28px,4vw,40px);">What's on{{ activeCategory ? ' — ' ~ activeCategory : '' }}</h1>
+        <p class="mono" style="font-size:13px; color:var(--muted);">{{ total }} event{{ total == 1 ? '' : 's' }}</p>
+      </div>
+
+      <input type="checkbox" id="catsToggle" class="chip-toggle-checkbox">
+      <div class="chip-row chip-row-collapsible">
+        <a href="{{ path('event_list') }}" class="chip {{ activeCategory is null ? 'is-active' : '' }}">All</a>
+        {% for category in categories %}
+          <a href="{{ path('event_list', {category: category}) }}" class="chip {{ activeCategory == category ? 'is-active' : '' }}">{{ category }}</a>
+        {% endfor %}
+      </div>
+      <label for="catsToggle" class="chip-toggle-btn" style="margin-bottom:32px;">
+        <span class="show-more">Show all categories ↑</span>
+        <span class="show-less">Show fewer categories ↑</span>
+      </label>
+    </div>
+  </section>
+
+  <section class="section" style="padding-top:0;">
+    <div class="wrap">
+      <div class="card-grid">
+        {% for event in events %}
+          {% include 'events/_card.html.twig' with { event: event } %}
+        {% else %}
+          <div class="no-results" style="grid-column:1/-1; padding:60px 20px; text-align:center; color:var(--muted); border:1px dashed var(--line-strong); border-radius:var(--r-card);">
+            <p class="eyebrow" style="margin-bottom:8px;">No events</p>
+            <p>Nothing matches this filter yet — try "All" or check back once the importer has run.</p>
+          </div>
+        {% endfor %}
+      </div>
+
+      {% include '_pager.html.twig' with {
+        currentPage: page,
+        totalPages: totalPages,
+        routeName: 'event_list',
+        routeParams: { category: activeCategory }
+      } %}
+    </div>
+  </section>
+{% endblock %}