OH MY GOSH THIS LOCALIZATION REIMPLEMENTATION TOOK FOREVER

- Deleted flippin' template directories (unnecessary now)
- Moved all cussin' HTML to root files instead of in _i18n folder (except for guides)
- Replaced all freakin' strings with liquid translation tags
- Added all Kevin' strings for each language already merged to their respective .yml files
- 40 seconds of testing before sending PR

Signed-off-by: rehrar <rehrar@tuta.io>