Updated static files to BS-v5 & added popper.js

Author: smithdc1

rest_framework/static/rest_framework/css/bootstrap-theme.min.css

@@ -296,6 +296,7 @@ <h1>{{ name }}</h1>
       <script src="{% static "rest_framework/js/jquery-3.5.1.min.js" %}"></script>
       <script src="{% static "rest_framework/js/ajax-form.js" %}"></script>
       <script src="{% static "rest_framework/js/csrf.js" %}"></script>
+      <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
       <script src="{% static "rest_framework/js/bootstrap.min.js" %}"></script>
       <script src="{% static "rest_framework/js/prettify-min.js" %}"></script>
       <script src="{% static "rest_framework/js/default.js" %}"></script>