Remove unused navigation and location tracking from donation page

Remove the `useLocation` hook and associated navigation buttons from the donate page component.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 1fa9329f-0cec-4a2f-80e8-e26dbae3142e
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 63734cdd-842b-41e8-9e46-27ee7cb9c87a
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/4d696b13-86f2-4c9d-be0d-95b293430047/1fa9329f-0cec-4a2f-80e8-e26dbae3142e/BUvsOPe
Replit-Helium-Checkpoint-Created: true

artifacts/ehsan-poc/src/pages/donate.tsx

@@ -2,7 +2,7 @@ import { useState, useMemo } from "react";
 import { useForm } from "react-hook-form";
 import { zodResolver } from "@hookform/resolvers/zod";
 import { z } from "zod";
-import { useParams, useLocation, useSearch, Link } from "wouter";
+import { useParams, useSearch, Link } from "wouter";
 import { useLanguage } from "../contexts/LanguageContext";
 import { useCart } from "../contexts/CartContext";
 import {
@@ -66,7 +66,6 @@ export default function Donate() {
   const { t } = useLanguage();
   const params = useParams<{ id: string }>();
   const search = useSearch();
-  const [, setLocation] = useLocation();
   const queryClient = useQueryClient();
   const { removeItem: removeFromCart } = useCart();
 
@@ -226,16 +225,6 @@ export default function Donate() {
             <Info className="h-4 w-4 shrink-0" />
             <span>{t.donate.refundNote}</span>
           </div>
-
-          {/* Navigation */}
-          <div className="mt-10 flex gap-3 justify-center">
-            <Button variant="outline" onClick={() => setLocation("/opportunities")}>
-              {t.common.opportunities}
-            </Button>
-            <Button onClick={() => setLocation(`/track/${request.id}`)}>
-              {t.common.trackCase}
-            </Button>
-          </div>
         </div>
       </div>
     );