Split app.js into individual scripts

templates/app/new_offer.html.twig

@@ -1,6 +1,10 @@
 {% extends 'base.html.twig' %}
 
-{% block title %}New Offer{% endblock %} 
+{% block title %}New Offer{% endblock %}
+
+{% block javascripts %}
+	{{ encore_entry_script_tags('fileUpload') }}
+{% endblock %}
 
 {% block body %}
     {% for message in app.flashes('error') %}