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/modals/shipping-modal.tsx

@@ -1,4 +1,4 @@
-"use client";
+"use client";
 
 import { ChangeEvent, FormEvent } from "react";
 import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogFooter } from "@/components/ui/dialog";
@@ -9,7 +9,7 @@ import { ShippingData } from "@/lib/types";
 interface ShippingModalProps {
   open: boolean;
   onClose: () => void;
-  onSave: (shippingData: ShippingData) => void; // ✅ Allow passing shippingData
+  onSave: (shippingData: ShippingData) => void; //  Allow passing shippingData
   shippingData: ShippingData;
   setShippingData: React.Dispatch<React.SetStateAction<ShippingData>>;
   editing: boolean;