Merged in task/prod/uon--repo/CST-22465 (pull request DSpace#4121)

[CST-22465] hyerarchical tree label

Approved-by: Daniele Ninfo

Author: giuliabarucca

src/assets/i18n/en.json5

@@ -8270,6 +8270,9 @@
 
   "vocabulary-treeview.tree.description.product-coar-types": "Product types",
 
+  "vocabulary-treeview.tree.description.orgunits": "Hierarchical tree view",
+
+  "vocabulary-treeview.header.orgtree": "Hierarchical tree view",
 
 
   "vocabulary-treeview.info": "Select a subject to add as search filter",