Add CSV export for orders and update UI symbols

Introduces an exportOrdersToCSV function in lib/api-client.ts to allow exporting orders by status as a CSV file. Updates various UI components to use the '•' (bullet) symbol instead of '·' (middle dot) and replaces some emoji/unicode characters for improved consistency and compatibility. Also normalizes the 'use client' directive to include a BOM in many files.

components/animated-stats-section.tsx

@@ -1,4 +1,4 @@
-"use client";
+"use client";
 
 import { Package, Users, CreditCard } from "lucide-react";
 import { AnimatedCounter } from "./animated-counter";
@@ -80,4 +80,4 @@ export function AnimatedStatsSection({ stats }: AnimatedStatsProps) {
       </div>
     </div>
   );
-} 
+}