add error

src/error.vue

@@ -0,0 +1,34 @@
+<script setup lang="ts">
+const error = useError()
+const appConfig = useAppConfig()
+const getColor = computed(() => appConfig.ui.primary)
+</script>
+
+<template>
+  <NuxtLayout name="default">
+    <div class="flex flex-col items-center gap-4">
+      <h1 class="font-medium text-[8rem] md:text-[16rem] leading-none bg-error bg-clip-text tracking-wider font-error" :class="`text-${getColor}-500`">
+        {{ error.statusCode }}
+      </h1>
+      <p class="text-lg md:text-2xl text-subtitle text-center">
+        Sorry, {{ error.statusCode === 404
+          ? "the page you are looking for doesn't exist or as been moved."
+          : "you have encountered a problem."
+        }}
+        <br>
+        Let's find a better place for you to go.
+      </p>
+    </div>
+    <div>
+      <UButton to="/" size="md" variant="soft" color="primary">
+        Go back to the main page
+      </UButton>
+    </div>
+  </NuxtLayout>
+</template>
+
+<style scoped>
+.bg-error {
+  @apply text-transparent bg-clip-text bg-origin-content bg-gradient-to-b from-gray-100 to-gray-300 dark:from-zinc-600 to-55% dark:to-zinc-800;
+}
+</style>