* Add initial side nav
* Add Download page as a sub-page under Meth&Data
- udpate S3 file path in .envs
- remove the DownloadPacket component
- move download copy from methodology to download
- modify header to use two types of navs:
-- mobile (with sub-pages) and
-- desktop (without subpages)
- create a SubPageNav component
- add SubPagNav to Meth and Download page
- update snapshots
- add global CSS overide to remove minus sign on mobile nav link accordion as it's permanently open
* Remove the update tag above Public eng button
* Make the 3rd bullet on explore page update on 5/25
* Make the RFI box text change after 5/25/22
* Update site with RFI expired copy, remove Alerts
- add Spanish translations
- update snapshots
* Fix typo on XLS file path
* Refactor HowYouCanHelp to standard form
* Add custom download links with icons
- add new DownloadLink compnent
- add Spanish translations
* Update download file sizes
* Allow meth&data nav link to collapse on mobile
