update to nuxt 4

app/components/RelativeTime.vue

@@ -0,0 +1,32 @@
+<template>
+  <div class="relative inline-block group/relative-time">
+    <!-- Visible relative time -->
+    <time :datetime="isoDate" class="text-sm text-muted-foreground">
+      {{ DateTime.fromJSDate(date).toRelative({ locale: $i18n.locale }) }}
+    </time>
+
+    <!-- Custom tooltip that shows on hover -->
+    <div
+      role="tooltip"
+      class="absolute bottom-full left-1/2 -translate-x-1/2 mb-1 px-2 py-1 rounded bg-zinc-900 text-white text-xs whitespace-nowrap shadow z-10 opacity-0 group-hover/relative-time:opacity-100 transition-opacity pointer-events-none"
+      aria-hidden="true"
+    >
+      {{ $d(date, "long") }}
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { DateTime } from "luxon";
+import { computed } from "vue";
+
+const props = defineProps<{
+  date: string | Date;
+}>();
+
+const date = computed(() =>
+  typeof props.date === "string" ? new Date(props.date) : props.date,
+);
+
+const isoDate = computed(() => date.value.toISOString());
+</script>