[#59219] added upsale text for enterprise banner

app/views/custom_fields/_form.html.erb

@@ -64,7 +64,7 @@ See COPYRIGHT and LICENSE files for more details.
                                   collapsible: true,
                                   topMargin: true,
                                   opReferrer: "custom-field-hierarchy",
-                                  textMessage: "PLACEHOLDER - upgrade to Starkiller Base",
+                                  textMessage: I18n.t("custom_fields.upsale.custom_field_format_hierarchy"),
                                   moreInfoLink: OpenProject::Static::Links.links[:enterprise_docs][:boards][:href]
                                 }
       %>

config/locales/en.yml

@@ -263,6 +263,8 @@ en:
           zero: no sub-items
           one: 1 sub-item
           other: "%{count} sub-items"
+    upsale:
+      custom_field_format_hierarchy: "Need a hierarchy in your custom fields for work packages?"
 
     text_add_new_custom_field: >
       To add new custom fields to a project you first need to create them before