feat(frontend): assemble accessible application shell

frontend/src/components/ResultSet.vue

@@ -0,0 +1,20 @@
+<script setup lang="ts">
+import type { TrackEvent } from '../lib/types'
+import TrackCard from './TrackCard.vue'
+
+defineProps<{ tracks: TrackEvent[] }>()
+</script>
+
+<template>
+  <div class="set" aria-label="Recommended tracks">
+    <TrackCard v-for="event in tracks" :key="event.track.id" :event="event" />
+  </div>
+</template>
+
+<style scoped>
+.set {
+  display: flex;
+  flex-direction: column;
+  gap: var(--s-2);
+}
+</style>