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.ts

@@ -324,6 +324,8 @@ export default {
       maxTokensMessage: '最大token数是必填项',
       maxTokensTip:
         '这设置了模型输出的最大长度，以标记（单词或单词片段）的数量来衡量。',
+      quote: '显示引文',
+      quoteTip: '是否应该显示原文出处？',
     },
     setting: {
       profile: '概要',