Add print preview in Sync-in Desktop

[florentauberval-alt]

What type of request is this?

New feature idea

Clear and concise description of the feature you are proposing

The Sync-in Desktop application does not currently provide a print preview when printing documents opened with Collabora.
This functionality is available when using Collabora from a standard web browser and would improve the user experience in the desktop application. A print preview should be displayed before the document is sent to the printer, allowing the user to check the rendering and select the required print options.

Validations

• Check the feature is not already implemented in the project.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.
• Check that the feature is technically feasible and aligns with the project's goals.