feat(config): disable sharp solid version of FontAwesome icons

- Set `sharp_solid` option to false in FontAwesome configuration
- This change affects the icon style used throughout the theme

_config.yml

@@ -109,7 +109,7 @@ fontawesome: # Pro v6.2.1
   # Duotone version
   duotone: false
   # Sharp Solid version
-  sharp_solid: true
+  sharp_solid: false
 # FONTAWESOME <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< end