Path in libraries file is not valid.

Problem/Motivation

Steps to reproduce

In cocoen_beforeafter.libraries.yml the cocoen.min.js is reffrered from the js folder
js/cocoen.min.js: {}
but actually there is no such file. It is inside the coceon library.

Proposed resolution

change the code in cocoen_beforeafter.libraries.yml to
/libraries/cocoen/dist/js/cocoen.min.js: {}

Remaining tasks

User interface changes

API changes

Data model changes