feat: add SystemModelSettingModal (#127)

feat: submit api key and add language to Configuration and fetch llm factory list on UserSettingModel mount (#121)

feat: display chunk token number when category of knowledge as general and unavailable llm models appear disabled and if the backend returns 401, it will jump to the login page and fixed the issue where the greeting would disappear when clicking on a new dialog (#117)

feat: create a chat assistant and extract SimilaritySlider (#67)