Move DashboardEmptyScreen inside DashboardViewport (elastic#51939) (e…

…lastic#52637)

* Prototyping adding Visualization to Dashboard

* i18n fixes

* Remvoing dashboard empty screen directive

* Updating test for empty dashboard screen

* Removing unused state variable

* Adding a test for DashboardViewPort

* i18n & minor fixes

* Fixing fullscreen mode view

* Fixing failing functional test (hopefully)

* Minor style fix

* Fixing EUI text, rendering empty screen OR the panels

* Fixing empty screen in fullscreen mode

* Update snapshot

* Trying to render empty screen from Angular controller

* refactor: 💡 don't pass renderEmpty through inputs

And make sure isEmptyState is not stale.

* Fixing tests after Vadim's commit

* Removing unnecessary isEmptyStateProps

* Skipping failing test

* Removing unnecessary en.json file

* Re-adding emptyState, reintroducing functional test

* Fixing ja-JP file

* Undoing my thing to the functional test