feat: Implement FAQs feature for staff application

- Created a modular package for Frequently Asked Questions (FAQs) functionality.
- Established Clean Architecture with Domain, Data, and Presentation layers.
- Implemented BLoC for state management with events and states.
- Developed search functionality with real-time filtering of FAQs.
- Designed an accordion UI for displaying FAQs by category.
- Added localization support for English and Spanish.
- Included comprehensive documentation and testing checklist.
- Integrated dependency injection for repositories and use cases.
- Configured routing for seamless navigation to FAQs page.

apps/mobile/packages/core_localization/lib/src/l10n/en.i18n.json

@@ -1143,6 +1143,12 @@
       "profile_visibility_updated": "Profile visibility updated successfully!"
     }
   },
+  "staff_faqs": {
+    "title": "FAQs",
+    "search_placeholder": "Search questions...",
+    "no_results": "No matching questions found",
+    "contact_support": "Contact Support"
+  },
   "success": {
     "hub": {
       "created": "Hub created successfully!",

apps/mobile/packages/core_localization/lib/src/l10n/es.i18n.json

@@ -1143,6 +1143,12 @@
       "profile_visibility_updated": "¡Visibilidad del perfil actualizada exitosamente!"
     }
   },
+  "staff_faqs": {
+    "title": "Preguntas Frecuentes",
+    "search_placeholder": "Buscar preguntas...",
+    "no_results": "No se encontraron preguntas coincidentes",
+    "contact_support": "Contactar Soporte"
+  },
   "success": {
     "hub": {
       "created": "¡Hub creado exitosamente!",