* feat: add DocumentPreview

* feat: display all pdf pages

feat: rename conversation and delete conversation and preview reference image and fetch file thumbnails (#79)

* feat: fetch file thumbnails

* feat: preview reference image

* feat: delete conversation

* feat: rename conversation

feat: remove KnowledgeSearching and add knowledge configuration page and add a run button to the document (#64)

* feat: add a run button to the document

* feat: add knowledge configuration page

* feat: remove KnowledgeSearching

* feat: set chunk to available state

* feat: select all chunk

* feat: confirm before deleting knowledge base

* feat: add ChunkToolBar

* feat: add pagination to document table

* feat: fetch document list by page

* feat: poll the document list

* feat: upload document

* feat: save the selected parser to the backend on the upload file page

* feat: modify routing to nested mode

* feat: rename document

feat: remove loading from model and use DvaModel instead of redundant types such as kAModelType (#47)

* feat: use DvaModel instead of redundant types such as kAModelType

* feat: set the type for registerServer

* feat: remove loading from model

* update typescript

* add chunk api

* remove useless code