Add front-end js file to default theme

hosts/localhost/template/footer.html

@@ -22,5 +22,6 @@
 		<script src="{{$.System.PathJsJquery}}"></script>
 		<script src="{{$.System.PathJsPopper}}"></script>
 		<script src="{{$.System.PathJsBootstrap}}"></script>
+		<script src="{{$.System.PathThemeScripts}}"></script>
 	</body>
 </html>