implemented bill deletion + var rename

app/bills/[id]/delete/not-found.tsx

@@ -0,0 +1,4 @@
+import { NotFoundPage } from '@/app/ui/NotFoundPage';
+ 
+export default () =>
+<NotFoundPage title="404 Bill Not Found" description="Could not find the requested Bill." />;

app/bills/[id]/delete/page.tsx

@@ -0,0 +1,12 @@
+import { deleteBillById } from '@/app/lib/actions';
+import { notFound, redirect } from 'next/navigation';
+
+export default async function Page({ params:{ id } }: { params: { id:string } }) {
+    const [locationID, billID] = id.split('-');
+
+    if(await deleteBillById(locationID, billID) === 0) {
+        return(notFound());
+    }
+
+    redirect(`/`);
+}