refactor: enhance UI components with improved styling and layout

- Updated CollectionCard, CountryCard, LodgingCard, NoteCard, RegionCard, TransportationCard, UserCard, and ShareModal components for better visual consistency and responsiveness.
- Introduced hover effects and transitions for a more interactive experience.
- Improved accessibility by ensuring proper alt text for images and using semantic HTML elements.
- Refactored date formatting logic into a utility function for reuse across components.
- Added new translations for profile viewing and joined date in the localization files.

frontend/src/locales/it.json

@@ -271,7 +271,9 @@
     "timed": "A tempo",
     "distance": "Distanza",
     "all_linked_items": "Tutti gli elementi collegati",
-    "itinerary": "Itinerario"
+    "itinerary": "Itinerario",
+    "joined": "Partecipato",
+    "view_profile": "Visualizza il profilo"
   },
   "home": {
     "desc_1": "Scopri, pianifica ed esplora con facilità",