Dev UI: Extension card not visible out-of-the-box

[ghost]

Describe the bug

When creating a new Quarkiverse extension it is not listed in the Dev UI out-of-the-box.

However, according to the Dev UI guide it should be: "In order to make your extension listed in the Dev UI you don’t need to do anything!"

Expected behavior

The extension is visible in the Dev UI.

Actual behavior

The extension is not visible in the Dev UI.

How to Reproduce?

Create a new extension for Quarkiverse as described here:
https://quarkus.io/guides/building-my-first-extension#maven-setup

The extension is then not listed in the Dev UI.

If in quarkus-extension.yaml a description or metadata/guide is defined, the extension card becomes visible.
Note that the description and metadata/guide is not set by default.

Output of uname -a or ver

No response

Output of java -version

No response

GraalVM version (if different from Java)

No response

Quarkus version or git rev

2.1.3.Final

Build tool (ie. output of mvnw --version or gradlew --version)

No response

Additional information

No response