增加配置项与图标库

public/font-awesome/scss/_functions.scss

@@ -0,0 +1,8 @@
+// functions
+// --------------------------
+@use "sass:string";
+
+// fa-content: convenience function used to set content property
+@function fa-content($var) {
+  @return string.unquote("\"#{ $var }\"");
+}