Fix: remove duplicate Stamp import in watchlist page

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

Author: piyushxpc7

app/(app)/watchlist/page.tsx

@@ -9,7 +9,6 @@ import {
   BlBtn,
   Metric,
   Spark,
-  Stamp,
 } from "@/components/ui/bl-primitives";
 import { generateSpark, cn } from "@/lib/utils";
 import { ArrowRight, RefreshCw, Download, Plus } from "lucide-react";