add: first post, external posts, new comps

Add first post for monday, add external posts from other authors, add components for internal and external links

app/components/Link/Internal.vue

@@ -0,0 +1,14 @@
+<template>
+  <NuxtLink class="inline-flex-row text" :to="url">
+    <slot/>
+    <IconLinkInternal/>
+  </NuxtLink>
+</template>
+
+<script setup lang="ts">
+type Props = {
+  url: string
+}
+
+defineProps<Props>()
+</script>