fix(feed): drop force-dynamic so the hourly revalidate actually applies (#71)

force-dynamic and revalidate contradicted each other, forcing feed.xml
to regenerate from Supabase on every request instead of caching hourly
as intended.

Author: Renji

app/feed.xml/route.ts

@@ -1,7 +1,6 @@
 import { createSupabaseAdminClient } from "@/lib/supabase/admin";
 import { getSiteUrl } from "@/lib/utils/urls";
 
-export const dynamic = "force-dynamic";
 export const revalidate = 3600;
 
 export async function GET() {