feat: add marketing landing page with hero, pricing, features, and FAQ sections

src/i18n/en.json

@@ -26,10 +26,10 @@
     "engagement_badge": "Free Forever"
   },
   "trust": {
-    "users": "Trusted by small businesses",
-    "codes": "Simple QR code creation",
-    "scans": "Track every scan",
-    "countries": "Works worldwide"
+    "users": "Happy Users",
+    "codes": "Active QR Codes",
+    "scans": "Total Scans",
+    "countries": "Countries"
   },
   "industries": {
     "restaurant": "Restaurant Chain",
@@ -62,6 +62,8 @@
     "demo_note": "This is a demo QR code"
   },
   "static_vs_dynamic": {
+    "title": "Why Dynamic QR Codes Save You Money",
+    "description": "Stop re-printing materials. Switch destinations instantly and track every scan.",
     "static": {
       "title": "Static QR Codes",
       "subtitle": "Always Free",