Actually I found out a simpler way to show Font Awesome 5 icons on axshare.
- Go on Font Awesome 5 website and create a kit (Home > Start using > Create your own kit)
- Copy the generated script
- Log in your axshare/axure cloud account > select options on the prototype you’re working on (three dots, if you use axure cloud) > select “Plugins”
- Click on “Add plugin” and paste the script you copied in the field. Make sure the code is be placed “
You won’t need any mapping, just the unicode characters
Hope it’s helpful!