dev-bundle in src/main

Hi, I’m coding a new app and I see that a folder named dev-bundle is automatically created in src/main, I don’t know at what moment it started to be created. I think my problem may come from my pom file. I don’t know if I have some trouble or misconfiguration.
Attached my pom file.

Thanks.
pom.xml (8.19 KB)

There should be an readme inside the folder with an explanation what this is