[v15.6.3] Improved formatting for email notes and templates

This week we are releasing improvements in email notes (and email templates). Users have now richer options to format them, from different fonts to uploading inline images.
🖍️  New formatting for email notes
Until today, email notes were comprised of only text. With today's release, users can build much more comprehensive email notes inside cards, to visualize and access important information faster.
🗒️  Improved formatting for email templates
The same formatting improvements are also available for email templates as of today.
Improvements:
Added "Reply to all / Reply / Forward" buttons on the bottom of email threads like in traditional Gmail to avoid users needing to scroll all the way up to make these actions.
Fixes:
-Fixed compose box crashing when an empty email draft was open when clicking on 'reply/forward'.