Move and Archive used store.Next to select the next message. When moving
or archiving multiple messages with an upward movement, this would
result in a to-be-removed message being selected. Use findNextNonDeleted
function to select the correct next message for these commands.
Signed-off-by: Tim Culverhouse <tim@timculverhouse.com>
Acked-by: Robin Jarry <robin@jarry.cc>