dialog opening animation via material ui, close #282 (#968)

* Starting a dialog with a simple fade animation

* just a 500 delay to make it looking more natural

* horizontal flip

* a bit better transition

* final changes to make it looking awesome

* fixes for an iphone; keeping content visible on closing a dialog

* one more fix for iPhones

* ensure that we get a failure when it does not work on iPhone X

* A proper version where everything works

* do not change data in this PR

* prepare to merge to the master

* just keep a simple fade in / fade out animation

* fix iPhone issues with extra next/prev buttons

* get it working for a landscape layout too