no issue
- added "Sends" and "Opens" columns to the posts list to see newsletter performance at a glance
- "Sends" will show the type of members sent to (free, paid, all) as a tooltip
- "Opens" shows open rate by default and total opens on hover
no issue
- adds a `.retry()` method to the email model+adapter
- adds a retry email task to the publishmenu that follows the same retry-then-poll behaviour as the regular email confirmation
- show a retry button in the confirm email modal if the original send failed
- increases max "immediate failure" poll timeout to 15sec (an 8sec retry-to-failure time has been seen locally)