* create data-provider package and move code from data-provider folder to be shared between apps
* fix type issues
* add packages to ignore
* add new data-provider package to apps
* refactor: change client imports to use @librechat/data-provider package
* include data-provider build script in frontend build
* fix type issue after rebasing
* delete admin/package.json from this branch
* update test ci script to include building of data-provider package
* Try using regular build for test action
* Switch frontend-review back to build:ci
* Remove loginRedirect from Login.tsx
* Add ChatGPT back to EModelEndpoint