The commit encompasses the aspect of refactoring the i18n handling for language cookies and headers. It also includes the deletion of get-language-cookie file and its transformation into a function inside i18n.server file. Extra functionalities were added to the i18n.server like enhancing the i18n server instance creation to consider the 'accept-language' header and default to environment provided values when necessary. The changes were also adjusted accordingly on the packages/i18n/package.json where deletion of "./cookie" was realized.
