📝 docs: sync community supported games

[koji-assistant]

Summary

• Adds Voxel Turf and Soulmask docs pages under community-supported games.
• Adds both games to the supported games indexes.
• Adds a note to existing Mad bridge docs that bridge docs, GitHub releases, and module availability can drift and should be checked separately.

Verification

• npm ci
• npm run typecheck
• npm run build

CI note

The GitHub docker check is failing before Docusaurus content validation while pulling the prebuilt API image: manifest for ***/takaro-app-api:latest not found. Local typecheck and docs build pass.