Alexandr Goncharov

Add slide thumbnails

3

I think it would be nice to have slides preview on the split view pane, similar to the Preview.app It will help with fast navigation through the deck

- Extract view model to the separate file - Move session startup to the background - Tune context menu for iOS (Fixes #19 ) 

Hack with transparent rectangle for context menu looks weird on the iOS

1

Introduced with #15