Get the save replay setting when the session started to prevent
inconsistent behaviour when the setting changed before the session was
processed by the live ending job
Display more information about the potential session replay in live
modal information
* Remove i18n polyfill to translate things in components
* Reduce bundle sizes
* Improve runtime perf
* Reduce a lot the time to make a full client build
* Reduce client build complexity
* We don't need a service to translate things anymore (so we will be able to translate title pages etc)
Unfortunately we may loose some translations in the migration process.
I'll put a message on weblate to notify translators