feat: add quote item to PromptEngine (#338)

### What problem does this PR solve?

Show original text source in conversation messages

Issue link: #337

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

web/src/locales/zh-traditional.ts

@@ -308,6 +308,8 @@ export default {
       maxTokensMessage: '最大token數是必填項',
       maxTokensTip:
         '這設置了模型輸出的最大長度，以標記（單詞或單詞片段）的數量來衡量。',
+      quote: '顯示引文',
+      quoteTip: '是否應該顯示原文出處？',
     },
     setting: {
       profile: '概述',