server : revamp chat UI with vuejs and daisyui (#10175)
* server : simple chat UI with vuejs and daisyui
* move old files to legacy folder
* embed deps into binary
* basic markdown support
* add conversation history, save to localStorage
* fix bg-base classes
* save theme preferences
* fix tests
* regenerate, edit, copy buttons
* small fixes
* docs: how to use legacy ui
* better error handling
* make CORS preflight more explicit
* add GET method for CORS
* fix tests
* clean up a bit
* better auto scroll
* small fixes
* use collapse-arrow
* fix closeAndSaveConfigDialog
* small fix
* remove console.log
* fix style for <pre> element
* lighter bubble color (less distract when reading)
