Added filter functionality and combined both base.html

templates/employee/preinfo-list.html

@@ -1,6 +1,14 @@
 {% extends 'list-crud.html' %}
 {% load static %}
 
+{% block filter %}
+<form id="filterForm" method="get" style="display: inline;">
+    <input type="hidden" name="filter" id="filterInput" value="{{ request.GET.filter|default:'active' }}">
+    <button type="button" class="btn btn-primary" id="activeBtn">Active</button>
+    <button type="button" class="btn btn-primary" id="allBtn">All</button>
+</form>
+{% endblock filter %}
+
 {% block table_header %}
         <th style="display: none;">Select</th>
         <th>Preinfo №</th>