### What problem does this PR solve?

Refactor Datasets UI #3221.
### Type of change

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

* feat: if it is not a pdf file, set the width of chunkContainer to 100%

* feat: login with github

* feat: logout

* feat: fixed the issue that some PDF documents could not be displayed on the chunk list page in small screens

* feat: add DocumentPreview

* feat: display all pdf pages

* feat: add a run button to the document

* feat: add knowledge configuration page

* feat: remove KnowledgeSearching

* feat: create chunk and edit chunk

* feat: delete chunk

* feat: search chunks

* feat: delete chunks in batches

* feat: set whether chunks are available in batches

* feat: set chunk to available state

* feat: select all chunk

* update typescript

* add chunk api

* remove useless code