fix: split public_api

[JKMarkowski]

Please provide a link to the associated issue.

fixes #784

Please provide a brief summary of this pull request.

I added index.d.ts file on every single component which exports all required file.

If this is a new feature, have you updated the documentation?

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[MattL75]

Good stuff @JKMarkowski!

I think the CI is failing because of the barrel imports. If you import explicitly for example export * from './lib/popover/index.d.ts' it might fix it. We've had issues with barrel imports in libraries in another project before.

[JKMarkowski]

I found the information that .d.ts files are already compiled and ready to be used for javascript, we shouldn't name files like that directly. After compilation in dist directory all exported files with .ts extension are being changed to .d.ts. Changing naming did job.