Missing peer dependencies from `webpack.py`?

[ZedThree]

Package version (if known): 2.1.6

Does webpack.py need to include peer dependencies of the packages it uses? react-invenio-forms relies on the following packages, as listed in its peer dependencies:

                "@ckeditor/ckeditor5-build-classic": "^16.0.0",
                "@ckeditor/ckeditor5-react": "^2.1.0",
                "formik": "^2.1.0",

invenio-app-rdm lists them in its webpack.py: https://github.com/inveniosoftware/invenio-app-rdm/blob/87148c6531eac48b28a3cee515c75e759e9dd25b/invenio_app_rdm/theme/webpack.py#L34-L36

Should they in fact be listed in here instead? Otherwise consumers of invenio-search-ui need to list them in their webpacks, but this doesn't appear to documented anywhere.