On uploading a new profile picture via URL, a CORS error presents
itself during the .toDataUrl() call due to misconfigured CORS
handling in the library. The change here allows cropper.js to
check crossorigin attribute in image and handle appropriately.
Also, the error handling is improved so the error is caught on
Firefox, as it sends a different error message than on Chrome.
* feat: re-designed digest
Updated design, logic no longer shows "no topics", just doesn't
show the list at all, teaser re-retrieved for digest so that it
always grabs a teaser even if there is no reply, changed default
email background to a light grey.
* fix: minor padding issues in digest
* fix: banned template
* fix: invitation.tpl
* fix: removed unused notif_chat and notif_post email templates
* fix: notification template
* fix: registration_accepted template
* fix: reset tpl
* fix: test tpl
* fix: email verify tpl
* fix: reset notify tpl
* fix: welcome tpl
* fix: additional minor font fixes
* fix: removed unused email header image assets
* fix: internationalised 'your daily digest' string
* fix: broken url in digest 🤦
* feat: added RTL support for emailer
/cc @PostMidnight