gamescope: add Italian translation and fix English page

[SpikeTheDragon40k]

• The page(s) are in the correct platform directories: common, linux, osx, windows, sunos, android, etc.
• The page description(s) have links to documentation or a homepage.
• The page(s) follow the content guidelines.
• The page(s) follow the style guide.
• The PR contains at most 5 new pages.
• The PR is authored by me, or has been human-reviewed if it was created with AI or machine translation software.
• The PR title conforms to the recommended templates.

[Managor]

Oh hey, I noticed that the page is trying to document steam usage and not terminal usage primarily. Can you also edit the english page to fix this on the same go?

[Managor]

You can treat translation as a second pass for english pages to fix any errors or irregularities

[SpikeTheDragon40k]

Oh hey, I noticed that the page is trying to document steam usage and not terminal usage primarily. Can you also edit the english page to fix this on the same go?

Yes, let me just make a fast add to this pr.

[Managor]

This should stay as it's explicitly instructing Steam usage

[SpikeTheDragon40k]

This should stay as it's explicitly instructing Steam usage

mb!