### What problem does this PR solve?
feat: Support for conversational streaming
#709
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
fix: fix uploaded file time error #680
feat: support preview of word and excel #684
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### 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)
* feat: if the chunk number of the knowledge base is greater than 0, set the embedding model to disabled
* feat: set the object-fit attribute of the chunk image to contain so that the image is not stretched
* feat: download documents on the document list page
* feat: add tooltip to Form.Item
* feat: set font family to inter
* feat: add loading to ChatContainer
* feat: add loading to all pages
* fix: disable sending messages if both application and conversation are empty
* feat: add chatSpin class to Spin of chat
* feat: fixed the issue where the next button would float above the file list on the file upload page.
* feat: fixed the issue where the last message would keep loading if the backend reported an error during chat.
* fix: fixed the issue that the prompt word for registering an account is not in English
* feat: install remark-gfm so that the markdown table can be displayed
* feat: fixed an issue where the default value for temperature was not set when creating a new chat
* feat: fixed the issue where ChatConfigurationModal displays old data when creating a new dialog
* feat: Add Skeleton to MessageItem before the backend returns a message
