This update adds a markdown preview feature to documents, allowing users to see a formatted version of their content directly within the application. It leverages existing technology used in the AI module, streamlining the development process. This enhancement improves document readability and provides a more flexible editing experience.

Purpose
=======
Add markdown preview and thumbnail in documents.

This is implemented with the `markdown2` library, which is already used in the AI module.

Task-5224024

This update adds the functionality to generate basic fiscal receipts for Italian businesses using their fiscal printers. This is a key step in ensuring compliance with Italian tax regulations and allows businesses to accurately record sales transactions for reporting purposes.

This commit add the basic receipt for the italian fiscal printer.

Task-5114203