Bug fix

[0xMarK]

The app doesn't crash on Done action when there are no items in self.
When there are no elements in self.data we can try to scroll the picker without app crashing.

[skywinder]

It check makes sense, thank you! 👍

[ma2kubo]

Evernote was unable to submit your note for the following reason:

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Subject: Re: [ActionSheetPicker] Bug fix (#60)

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[ma2kubo]

Evernote was unable to submit your note for the following reason:

The emailed note was received, but Evernote did not understand the email address. It may have been mistyped, or the user may not exist. Please check to make sure the address was properly entered.

Original message information:
From: Petr Korolev <notifications@github.com>
Delivered To: deviceone.c1297@m.evernote.com
All recipients: TimCinel/ActionSheetPicker <ActionSheetPicker@noreply.github.com>; ma2kubo <ma2kubo@gmail.com>
Subject: Re: [ActionSheetPicker] Bug fix (#60)

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• The Evernote team