Release Process

[danstarns]

The process for publishing the build artifacts of the GrapesJS repository has had the following issues:

1. Artifacts are expected to come directly from developers' machines. - refactor: remove dist from src #6041
2. The process is undocumented

We have multiple packages to release, and proper documentation is also needed. This ticket aims to standardize and document the release process of the GrapesJS OSS repositories, aligning with industry-standard workflows. This work will ensure consistency, reliability, and ease of use for all contributors.