fix: browser tab title should always just say "Epicure"

Root layout used title.template ("%s | Epicure") and 38 pages set
their own title, producing "Recipes | Epicure", "Messages — Epicure",
etc. Drop the template, set a flat "Epicure" default, and clear every
page's title override so they all inherit it.

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

apps/web/app/(app)/recipes/page.tsx

@@ -7,7 +7,7 @@ import { RecipesHeader } from "@/components/recipe/recipes-header";
 import { RecipesEmptyState } from "@/components/recipe/recipes-empty-state";
 import { RecipesGrid } from "@/components/recipe/recipes-grid";
 
-export const metadata: Metadata = { title: "Recipes" };
+export const metadata: Metadata = {};
 
 type SearchParams = Promise<{
   q?: string;