feat: rewrite to use app config and rework docs (#143)

Co-authored-by: Daniel Roe <daniel@roe.dev>
Co-authored-by: Sébastien Chopin <seb@nuxt.com>

docs/components/content/prose/ProseCode.vue

@@ -0,0 +1,71 @@
+<script lang="ts">
+import { defineComponent } from '#imports'
+
+export default defineComponent({
+  props: {
+    code: {
+      type: String,
+      default: ''
+    },
+    language: {
+      type: String,
+      default: null
+    },
+    filename: {
+      type: String,
+      default: null
+    },
+    highlights: {
+      type: Array as () => number[],
+      default: () => []
+    },
+    meta: {
+      type: String,
+      default: null
+    }
+  },
+  setup (props) {
+    const clipboard = useCopyToClipboard({ timeout: 2000 })
+    const icon = ref('i-heroicons-clipboard-document')
+
+    function copy () {
+      clipboard.copy(props.code, { title: 'Copied to clipboard!' })
+
+      icon.value = 'i-heroicons-clipboard-document-check'
+
+      setTimeout(() => {
+        icon.value = 'i-heroicons-clipboard-document'
+      }, 2000)
+    }
+
+    return {
+      icon,
+      copy
+    }
+  }
+})
+</script>
+
+<template>
+  <div class="group relative" :class="`language-${language}`">
+    <UButton
+      :icon="icon"
+      variant="link"
+      class="absolute right-3 top-3 opacity-0 group-hover:opacity-100 transition-opacity z-[1]"
+      size="xs"
+      tabindex="-1"
+      @click="copy"
+    />
+
+    <span v-if="filename" class="text-gray-400 dark:text-gray-500 absolute right-3 bottom-3 text-sm group-hover:opacity-0 transition-opacity">{{ filename }}</span>
+
+    <slot />
+  </div>
+</template>
+
+<style>
+pre code .line {
+  display: block;
+  min-height: 1rem;
+}
+</style>