The source project of this merge request has been removed.
Added Firefox Fenix, NextCompanion, arXiv Explorer, Reader for Selfoss and Animagia icons
I added some icons for open source apps: Firefox Fenix, NextCompanion, arXiv Explorer, Reader for Selfoss and Animagia (this is actually an app for a paid anime streaming service, but it is build upon FOSS technologies, both the app and the whole streaming service)