Refactoring: handling of page numbers in sections

* Transferred changes from another https://github.com/QuestPDF/QuestPDF/pull/367

* Update qodana.yml

* Update qodana.yml

* Simplified generated document structure

* Fixed: section links work correctly in merged documents

* Code refactoring

* Code refactoring

* Fixed rendering merged documents

* Merging documents: minor code adjustments

fix: image scaling may cause a rare bug that terminates an entire application when under a high memory pressure

* Settings for the GenerateImages() method

* ImageCanvas uses on ImageGenerationSettings now

* new overloads to generate images based on the passed settings

* Hidden SkiaSharp API

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Co-authored-by: NMarcinZiabek <marcin@ziabek.com>