add tariff management page layout

tailwind.config.ts

@@ -0,0 +1,10 @@
+import type { Config } from 'tailwindcss';
+
+const config: Config = {
+	content: [
+		'./pages/**/*.{js,ts,jsx,tsx,mdx}',
+		'./components/**/*.{js,ts,jsx,tsx,mdx}',
+		'./app/**/*.{js,ts,jsx,tsx,mdx}',
+	],
+};
+export default config;