Move reuseable components into reev-frontend-lib

[holtgrewe]

Is your feature request related to a problem? Please describe.
We currently have the use case for having the annonars displaying components also used in VarFish.

Describe the solution you'd like
Refactor them into a library:

• proof of concept
  • publish to GitHub Packages rather than npm, but used automated workflow
  • document development setup with npm link
  • ensure production deployment works
• actual migration

Describe alternatives you've considered
N/A

Additional context
N/A

[holtgrewe]

Repository:

• https://github.com/bihealth/reev-frontend-lib

Creates npm package reev-frontend-lib.

[holtgrewe]

While it is possible to install the package, this requires a npm login. Trying to rather install directly from Git.

[holtgrewe]

For now, putting into frontend/src/ext as git submodule for lack of np installability.