Asset Library documentation: outdated support levels and screenshots

[rinevard]

Your Godot version:
Godot 4.3

Issue description:
The Asset Library documentation contains outdated screenshots and descriptions that don't match the current interface.

Changes needed:

• Remove "Official" from the support level descriptions as it's no longer used
• Add "Featured" as a new support level category
• Update screenshots

URL to the documentation page:
https://docs.godotengine.org/en/stable/community/asset_library/using_assetlib.html

[rinevard]

I'd like to work on this issue. This would be my first contribution to Godot, so please let me know if I need any guidance. I'll create a PR to update the documentation and screenshots.

[rinevard]

I noticed that 'Official' support level has been replaced with 'Featured'. Could someone explain what the 'Featured' category represents? This would help in updating the documentation.

[rinevard]

I found some relevant information about the 'Featured' category from related PRs and discussions:

• In Rename Official support level to Featured in the frontend godot-asset-library#322, it mentions this change "paves the way for integrating hand-picked high-quality assets to be displayed in the project manager"

• Further discussion in Better discoverability of curated add-ons into editor godot-proposals#8114 provides more context about the purpose of curated assets

Based on these sources, I plan to update the documentation to describe Featured assets as:
"Featured assets are hand-picked resources recognized for their value to the community."

I'll create a PR with this change along with updated screenshots.