Rebrand to Another Nuzlocke Tracker (ANT)

Update all user-facing references from "Nuzlocke Tracker" to
"Another Nuzlocke Tracker" / "ANT" across package configs, page
titles, meta tags, nav header, documentation, and web manifest.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/public/site.webmanifest

@@ -1,6 +1,6 @@
 {
-  "name": "Nuzlocke Tracker",
-  "short_name": "Nuzlocke",
+  "name": "Another Nuzlocke Tracker",
+  "short_name": "ANT",
   "icons": [
     { "src": "/icon-192.png", "sizes": "192x192", "type": "image/png" },
     { "src": "/icon-512.png", "sizes": "512x512", "type": "image/png" }