keep i18n id intact

_locales/en/messages.json

@@ -1697,7 +1697,7 @@
     "message": "Style injection order",
     "description": "Tooltip for the button in the manager to open the dialog and also the title of this dialog"
   },
-  "styleInjectionOrderHint_main": {
+  "styleInjectionOrderHint": {
     "message": "Drag'n'drop a style to change its position. Styles are injected sequentially in the order shown below so a style further down the list can override the earlier styles.",
     "description": "Hint in the injection order dialog in the manager"
   },

injection-order/injection-order.js

@@ -69,7 +69,7 @@ async function InjectionOrder(show = true) {
     });
     DraggableList(ol, {scrollContainer: ol});
     return $create('section', {dataset: {[type]: ''}}, [
-      $create('header', t('styleInjectionOrderHint_' + type)),
+      $create('header', t(`styleInjectionOrderHint${type === 'main' ? '' : '_' + type}`)),
       ol,
     ]);
   }