Fixed JLink demo

Signed-off-by: palexdev <alessandro.parisi406@gmail.com>

demo/src/main/java/module-info.java

@@ -7,6 +7,7 @@ module MaterialFX.demo.main {
 
     requires fr.brouillard.oss.cssfx;
     requires org.kordamp.ikonli.javafx;
+    requires org.kordamp.ikonli.fontawesome5;
     requires org.scenicview.scenicview;
 
     opens io.github.palexdev.materialfx.demo;