[codex] fix Servo project link

[Sean-Kenneth-Doherty]

Summary

• Corrects the Servo project card so its contribution link points to servo/servo instead of digital-asset/daml.
• Keeps the existing Servo image, description, and tags unchanged.
• Contributes to Add projects to project list #1.

Root cause

The project metadata mixed Servo-facing card details with a copied Daml contribution URL, so users clicking Servo were sent to the wrong repository.

Validation

• pnpm build
• git diff --check
• Verified servo/servo is public and active, https://github.com/servo/servo/contribute returns HTTP 200, and the Servo avatar URL returns image/png.

[Sean-Kenneth-Doherty]

Moved out of draft after local validation:

• pnpm build
• git diff --check
• Verified the Servo project entry resolves to https://github.com/servo/servo/contribute.
• Live link checks returned 200 text/html for the Servo contribute URL and 200 image/png for the existing Servo avatar URL.