Feature/prepare npm publish

[Haprog]

• Rename package to @fintraffic/fds-coreui-components (to match with new reserved npm scope and renamed repository).
• Add new meta data to package.json: main, module, types publishConfig, repository, homepage and bugs URL.
• Use released version of @fintraffic/fds-coreui-css dependency.
• Add main entrypoint that re-exports all component classes/types.
• Export custom element definitions separately. Follow Open Web Components component publishing guidelines and export side effects (custom element definition) separately. See: https://open-wc.org/guides/developing-components/publishing/#do-export-side-effects-separately
• Add install and usage instructions to README
• Bump version to 0.1.0.

Part of https://github.com/fintraffic-design/fds-coreui-components/issues/44

[Haprog]

Rebased on top of latest main (main had a newer one-liner change in README).