SEO meta nuxt migration (#274)

* SEO meta nuxt migration

* Polish seo metas, add defaults for OG and twitter

---------

Co-authored-by: Julien Nahum <julien@nahum.net>

client/composables/useOpnSeoMeta.js

@@ -0,0 +1,16 @@
+export const useOpnSeoMeta = (meta) => {
+  return useSeoMeta({
+    ...meta.title ? {
+      ogTitle: meta.title,
+      twitterTitle: meta.title,
+    } : {},
+    ...meta.description ? {
+      ogDescription: meta.description,
+      twitterDescription: meta.description,
+    } : {},
+    ...meta.ogImage ? {
+      twitterImage: meta.ogImage,
+    } : {},
+    ...meta,
+  })
+}