UX improvements

* ignore English articles when sorting names
  * added a new sort_name field that gets automatically created
* automatically fill certain values in forms:
  * new game: name and sort name after typing
  * new edition: name and sort name when selecting game
  * new purchase: platform when selecting edition

games/templates/add.html

@@ -1,4 +1,5 @@
 {% extends "base.html" %}
+{% load static %}
 
 {% block title %}{{ title }}{% endblock title %}
 
@@ -15,3 +16,10 @@
         </table>
     </form>
 {% endblock content %}
+
+{% block scripts %}
+    {% if script_name %}
+        <script type="module" src="{% static 'js/'|add:script_name %}"></script>
+    {% endif %}
+{% endblock scripts %}
+