Merge relevant Abstract and references

• merge the 2 sections
• Make the way references are displayed more compact

components/content/StructureDb.vue

 <script setup lang="ts">
-
-import { useFacetsStore } from '~~/stores/facets'
 const sortBy: Ref<{ key: string, order: string }[]> = ref([{ key: 'system', order: "asc" }])
 const itemValue = ref("id");
-const facets = ref(["system", "completed",
+const facets: Ref<string[]> = ref(["system", "completed",
     "plddts",])
 const headers: Ref<Object[]> = ref([
     { title: "System", key: "system" },