v25.6.2 - Enhanced Slide Objects Initialization

What's Changed

Following improvements were made in Openize.Slides Package:

• Enhanced support for object initializers
  Collections like TextShapes, Images, and Shapes now support assignment via
  new Slide { TextShapes = [...] }
  while ensuring internal logic is applied.

• Property setters updated
  List properties now re-add items via Add methods to ensure proper validation, rendering, and parent-slide association.

• Internal assignment methods added
  Methods like SetPiesDirect(List<Pie>) allow internal logic to bypass the public setter when needed (e.g., deserialization, cloning).

Full Changelog: v25.6.1...v25.6.2