Add mermaid experimental validation

Try to make mermaid work with nuxt-content

components/content/ListSystems.vue

@@ -33,11 +33,12 @@ function filterOnlyCapsText(value, query, item) {
   return false;
 }
 const { initPfam } = usePfamStore();
-
-initPfam();
+onMounted(() => {
+  initPfam();
+})
 </script>
 <template>
-  <v-card >
+  <v-card>
     <v-toolbar density="compact">
       <v-toolbar-title>Defense Systems</v-toolbar-title>