improve NodeView components and style

src/components/nodes/NodeViewBody.vue

@@ -37,6 +37,7 @@
 </template>
 
 <script>
+import { getRelation } from '@/store/utils'
 import { NodeViewTitle } from '@/components/nodes'
 
 
@@ -74,11 +75,7 @@ export default {
 
     onFootnoteLinkClick (node, popoverBtnId) {
       this.$root.$emit('bv::hide::popover', popoverBtnId)
-      if (node.parents && node.parents.length) {
-        this.$parent.$emit('open-node', { parentId: node.parents[0].id, childId: node.id })
-      } else {
-        this.$parent.$emit('open-node', { parentId: node.id })
-      }
+      this.$parent.$emit('open-node', getRelation(node))
     }
   },