Invenio-assets

* remove `node-semver`
* add `pywebpack` as a direct dependency, as the list of JS deps versions
depends on the merging algorithm provided by pywebpack

* add tinymce to dependencies list

* replace ckeditor with tinymce due to license issue

* upgrade to webpack 5
* upgrade js dependencies
* upgrade webpack plugins

* upgrade dependencies to node 18 compliance

* Upgrade eslint dependencies
* Add eslint-config-invenio for global linting