fix(templates): the list pages search their rows as text, with one script

The list pages' search (filter-table.js) read what was typed as a
regular expression: a "(" or "[" stopped it with an error. It also
needed jQuery, while the instance list had its own script for the same
search. Both are now static/js/table_filter.js: plain text in any case,
the instance list's state list and host groups where a page has them,
remembered for a day as before. A group's header row is marked as one
(data-group-header) instead of being any row without a state.

admin/templates/admin/group_list.html

@@ -57,5 +57,5 @@
 {% endblock content %}
 
 {% block script %}
-<script src="{% static 'js/filter-table.js' %}"></script>
+<script src="{% static 'js/table_filter.js' %}"></script>
 {% endblock script %}

admin/templates/admin/tombstone_list.html

@@ -61,5 +61,5 @@
 {% endblock content %}
 
 {% block script %}
-<script src="{% static 'js/filter-table.js' %}"></script>
+<script src="{% static 'js/table_filter.js' %}"></script>
 {% endblock script %}

admin/templates/admin/user_list.html

@@ -85,5 +85,5 @@
 {% endblock content %}
 
 {% block script %}
-<script src="{% static "js/filter-table.js" %}"></script>
+<script src="{% static 'js/table_filter.js' %}"></script>
 {% endblock script %}