feat: Translate autosaved #3301 (#3304)

### What problem does this PR solve?

[_Briefly describe what this PR aims to solve. Include background
context that will help reviewers understand the purpose of the
PR._](feat: Translate autosaved #3301)

### Type of change


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

Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>

web/src/pages/flow/header/index.tsx

@@ -44,7 +44,9 @@ const FlowHeader = ({ showChatDrawer }: IProps) => {
           </Link>
           <div className="flex flex-col">
             <span className="font-semibold text-[18px]">{data.title}</span>
-            <span className="font-normal text-sm">已自动保存 {time}</span>
+            <span className="font-normal text-sm">
+              {t('autosaved')} {time}
+            </span>
           </div>
         </Space>
         <Space size={'large'}>