Add multi-select to Email

[OulipianSummer]

Many modern email clients allow the use of ctrl and shift to select multiple emails at once for batch operations.

The EOS fork of Geary doesn't currently support this, but it would be great if it did! That would make use of the native email client a lot more natural.

[danirabbit]

thanks for your suggestion! There’s an open feature request for this already in Mail. For what it’s worth elementary Mail is not a fork of Geary :)

Closing as a duplicate of elementary/mail#617