### What problem does this PR solve?
Embed the chat window into other websites through iframe
#345
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
some chunk method pictures are not in English #437
feat: set the height of both html and body to 100%
feat: add SharedChat
feat: add shared hooks
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
feat: render stats charts
feat: create api token
feat: delete api token
feat: add ChatApiKeyModal
feat: add RagLineChart
Issue link: #345
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
historical chats appear in the new user's chat box
Issue link:#256
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
