Refactor pb-browse-docs

[wolfgangmm]

The component used for browsing collections on TEI Publisher's start page, pb-browse-docs, has a number of problems. Most important, it includes user interface components in the shadow DOM, which are thus not customizable.

pb-browse is a replacement, dropping all UI components and most of the functionality. Instead it is just a thin wrapper on top of the generic pb-load. This makes it possible to combine the component more freely with other components and implement different types of views on a collection.

[github-actions[bot]]

:tada: This PR is included in version 1.44.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: