The webjar module was deleted during the development of the 7.5.0-alpha2. It is currently used by the Spring Boot community extension and other peoples to add the camunda webapp to their own web applications. It has nothing to do with the standalone webapp, is it a different kind of deployment.
- Restore webjar module, probably put it below distro in platform and also in platform-ee
- Add it to sonatype-oss release profile so it gets uploaded to Maven Central