fix: remove leftover create-next-app default favicon.ico (v0.65.3)

app/favicon.ico was still the stock Next.js/Vercel triangle logo from
the original scaffold, never swapped for Epicure's own icon. Next's
file-based routing serves whatever's at app/favicon.ico as
/favicon.ico independently of the icon.svg configured via metadata,
so browsers preferring the .ico kept showing the placeholder no
matter the cache state -- explains "clean computer, still see the
default icon". No .ico regenerated (no image rasterizer available in
this environment) -- the existing icon.svg is now the only favicon
source, which every modern browser supports directly.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "epicure",
-  "version": "0.65.2",
+  "version": "0.65.3",
   "private": true,
   "scripts": {
     "dev": "pnpm --filter web dev",