Open VSX v0.9.3

This is the sixth release of Open VSX. It consists of

• ovsx CLI
• openvsx-webui frontend library
• openvsx-server Docker image
• openvsx-webui Docker image

Deploying the server application is documented in the Wiki.

What's Changed

• Create new StringBuilder by @amvanbaren in #692
• Log query string too by @amvanbaren in #693
• Corrupted metadata extension in some extensions regarding targetPlatform by @amvanbaren in #687
• Unable to update namespace details by @amvanbaren in #694

Full Changelog: v0.9.1...v0.9.3