feat: add loading to ChatContainer and set font family to inter and add tooltip to Form.Item and download documents on the document list page (#136)

* 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: generate select options for SystemModelSettingModal grouped by type and add llm icon and add upgrade button to UserSettingTeam and replace the icon in the sidebar of the user settings page (#128)

* feat: generate select options for SystemModelSettingModal grouped by type

* feat: add llm icon

* feat: add upgrade button to UserSettingTeam

* feat: replace the icon in the sidebar of the user settings page

* feat: add the model

* feat: add SystemModelSettingModal