Send the file contents and markdown one last time upon close

[abartov]

Again, thanks for this awesome editor!

It seems the close event, unlike the fileChange event, does not include a payload with the markdown and HTML of the edited buffer. In editing longish texts, it would be immensely more performant to only update my underlying textareas and preview box with the markdown and html upon closing the StackEdit popup, rather than with every single keystroke. Could you add that?

[cadavre]

+1

[Ian-FR]

+1