Added customer list, coupon list and started working on purchase list

frontend/src/pages/sales/coupons/components/coupon-primary-buttons.tsx

@@ -0,0 +1,14 @@
+import { IconPlus } from "@tabler/icons-react";
+import { Button } from "@/components/ui/button";
+import { useCouponsContext } from "../context/coupon-context";
+
+export function CouponPrimaryButtons() {
+	const { setOpen } = useCouponsContext();
+	return (
+		<div className="flex gap-2">
+			<Button className="space-x-1" onClick={() => setOpen("add")}>
+				<span>Add Coupon</span> <IconPlus size={18} />
+			</Button>
+		</div>
+	);
+}