fix(catalog): translate product-card stock badge and action-button labels

P0-1: stock badge rendered the raw item.remainings value ('High',
etc) untranslated on every product card sitewide. Now maps to
catalog.stockHigh/Medium/Low/Out via the translate pipe; the 'out'
class check is now case-insensitive to match.

P0-2: favorite/share/quick-view action-button aria-labels rendered
literal 'catalog.favorite'/'catalog.share'/'catalog.quickView' keys
because they never existed in translations.ts/en.ts/ru.ts/hy.ts
(only catalog.compare existed, and it was likewise unused). Added
all 4 keys to the Translations interface and all 3 locales.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/i18n/translations.ts

@@ -259,6 +259,14 @@ export interface Translations {
     filterColor: string;
     filterSize: string;
     filterAttributes: string;
+    favorite: string;
+    compare: string;
+    share: string;
+    quickView: string;
+    stockHigh: string;
+    stockMedium: string;
+    stockLow: string;
+    stockOut: string;
   };
   productDetails: {
     loading: string;