Custom icons from kit not loaded properly

Problem/Motivation

When adding a the 2 metadata file ($your_module.fontawesome.iconlist.yml & $your_module.fontawesome.categories.yml) in your custom module you get some errors. These metadata files you can download from your premium fontawesome account. These contain some inconsistencies compared to the standard metadata files already included in the module.

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes