fix: missing dist outputs in published packages

[MiroslavDionisiev]

Resolves

Executing npm publish --access=public --workspace={package-name} packs and publishes a package in the context of a workspace but it doesn't ignore only the files in the .npmignore in the workspace but looks into the root as well. Because .npmignore file is missing in the root of the editor npm uses the .gitignore one. This leads to publishing wrong files and directories.
In addition the standalone repositories publish unnecessary content for the functioning of the package. Setting files in package.jsons allows to list what we want to be included in the published package. Current packages will contain only:

• dist output
• package.json
• README
• LICENSE

[cwillisf]

I'm not sure what to do about it yet, but it seems like a published package should not have exports entries that refer to files that are excluded from its published contents. This change makes the package less broken, though, so 👍