Implement [fflate](https://github.com/101arrowz/fflate) based session data compression. - compression here: https://github.com/stephane-klein/gibbon-replay/blob/5d0451643a7acda6285419ccd960b1f9b9b21ffd/packages/gibbon-replay-js/src/index.js#L17 - uncompress here: https://github.com/stephane-klein/gibbon-replay/blob/5d0451643a7acda6285419ccd960b1f9b9b21ffd/gibbon-replay-server/src/routes/(protected)/%5Brrweb_session_id%5D/%2Bpage.server.js#L18