fix: fix uploaded file time error #680 (#690)

fix: #209 after saving the knowledge base configuration, jump to the dataset page (#212)

feat: add corresponding icons to files (#164)

fix: fixed the issue that the prompt word for registering an account is not in English and fixed the issue where the last message would keep loading if the backend reported an error during chat and fixed the issue where the next button would float above the file list on the file upload page (#133)

feat: display all pdf pages and add DocumentPreview (#88)

feat: add file icon and add message popover content (#77)

feat: transform the parser's data structure and add Image to TestingResult (#63)

feat: test document chunks (#62)

feat: add SelectFiles and add KnowledgeTesting (#60)