Integrate FontAwesome in NavigationViewItem

[oghenez]

Hello

I have struggled to incluse fontawesome without success.
First in my App.xaml file i included like this

 <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ui:ThemeResources />
                <ui:XamlControlsResources />
            </ResourceDictionary.MergedDictionaries>
          
            <FontFamily x:Key="FontAwesome">pack://application:,,,/NavigationDemo;component/Fonts/FontAwesome-5-Free-Regular-400.otf</FontFamily>

        </ResourceDictionary>
    </Application.Resources>
</Application>

and i tried to use like this

<ui:NavigationViewItem Content="Add" Tag="home">
                    <ui:NavigationViewItem.Icon>
                        <ui:FontIcon FontFamily="{StaticResource FontAwesome}" Glyph="&#xf015;" /> 
                    </ui:NavigationViewItem.Icon>
                </ui:NavigationViewItem>
                
                <ui:NavigationViewItem Content="customer" Tag="customer" Icon="Contact"/>

But without success, pls can someone help me out