refactor: optimize taiwan english name

Author: alick-liming

en/on-call/quickstart/faq.mdx

@@ -213,9 +213,9 @@ description: "Learn about the most common questions when using Flashduty On-call
       <Tab title="🇨🇳 China">
         <CardGroup cols={4}>
           <Card title="🇨🇳 Mainland China" icon="message" />
-          <Card title="🇲🇴 Macau" icon="message" />
-          <Card title="🇹🇼 Taiwan" icon="message" />
-          <Card title="🇭🇰 Hong Kong" icon="message" />
+          <Card title="🇲🇴 Macao Special Administrative Region of China" icon="message" />
+          <Card title="🇹🇼 Taiwan region of China" icon="message" />
+          <Card title="🇭🇰 Hong Kong Special Administrative Region of China" icon="message" />
         </CardGroup>
       </Tab>
       <Tab title="🌏 Asia Pacific">