add translation hint

src-ui/src/app/components/common/input/select/select.component.html

@@ -9,7 +9,7 @@
         [items]="items"
         [addTag]="allowCreateNew && addItemRef"
         addTagText="Add item"
-        i18n-addTagText
+        i18n-addTagText="Used for both types and correspondents"
         bindLabel="name"
         bindValue="id"
         (change)="onChange(value)"