feat: add Home link to footer quick links section

- Added "Home" link as first item in footer quick links
- Routes to landing page (homepage)
- Added translations for all 4 languages:
  - English: "Home"
  - Romanian: "Acasă"
  - Spanish: "Inicio"
  - Italian: "Home"

Build: ✅ Successful

🤖 Generated with Claude Code

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

messages/es.json

@@ -177,6 +177,7 @@
       "description": "Una plataforma moderna para el estudio bíblico con conocimientos impulsados por IA y soporte comunitario.",
       "quickLinks": {
         "title": "Enlaces Rápidos",
+        "home": "Inicio",
         "about": "Acerca de",
         "blog": "Blog",
         "contact": "Contacto",