Exclude webforms

Ready for review

I expect that this will be done in a more generic way, for example, by setting the installation configuration defined in 3539510.

I expect that this will be done in a more generic way, for example, by setting the installation configuration defined, by hook or event subscriber defined in 3539510

Problem is that we need this exclusion now. I've added a TODO (see MR) and improved the ✨ Exclude config source strings by schema Active description by adding this additional line:

Consider to implement the @todo from BabelConfigHelper::excludeWebformConfigurations().

Thanks you. Fixed the remarks

Issue has been fixed, thanks.