feat(storybook): add fCC favicon (#512)

Author: huyenltnguyen

.storybook/main.ts

@@ -60,6 +60,11 @@ const config: StorybookConfig = {
 	},
 
 	staticDirs: [{ from: "../src/assets", to: "/assets" }],
+
+	managerHead: (head) => `
+		${head}
+		<link rel="icon" type="image/png" href="https://cdn.freecodecamp.org/universal/favicons/favicon.ico">
+	`,
 };
 
 export default config;