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/image-viewer-modal.tsx

@@ -1,4 +1,4 @@
-import { Dialog, DialogContent } from "@/components/ui/dialog";
+import { Dialog, DialogContent } from "@/components/ui/dialog";
 import { ChevronLeft, ChevronRight, X } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import { useEffect } from "react";
@@ -96,4 +96,4 @@ export function ImageViewerModal({ isOpen, onClose, imageUrl, onNavigate }: Imag
       </DialogContent>
     </Dialog>
   );
-} 
+}