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

frontend/src/pages/settings/appearance/index.tsx

@@ -6,7 +6,8 @@ export default function SettingsAppearance() {
 		<ContentSection
 			title="Appearance"
 			desc="Customize the appearance of the app. Automatically switch between day
-          and night themes.">
+          and night themes."
+		>
 			<AppearanceForm />
 		</ContentSection>
 	);