Cancel sending email not work as expected

[hoangdat]

Description

Given I just send a mail
When I click cancel
Then the composer is reopened

BUT the email is sent anyway!

Expected result

... Rename this cancel into reopen in composer which better describes the reality
... Or even don't display this "cancel" at all!
We just reopen the composer in case or error

Cc: @chibenwa @Arsnael TBD

[hoangdat]

IMO, a vote for: don't display this "cancel" at all!

[hoangdat]

• handle case for timeout exception, will have additional toast if sending/saving is more than 1 minutes