Identify flipped nodes and adjust items positions

Figma allows users to flip items, but doesn't communicate it in UI.
Bridge currently exports nodes without flip: it leads to visual differences and to item misplacement.

We can not move into supporting flip fully at the moment - we either need proper transform support in QDS UI or simplified flip support by Qt.

For now we should implement temporary and partial solution - identify flipped items and place them correctly (= where user expects them and aligned with visual position in Figma).