tweaking bottom controls layout in compounds list

Former-commit-id: 062e09d1f07d8ff3ec92e7b2d3c72b7504b31790

ippisite/ippidb/templates/compound_list.html

@@ -108,8 +108,8 @@
 </div>
 </div>
 
-<nav>
-  <ul class="pagination pagination-sm justify-content-end col-12">
+<nav class="d-flex">
+  <ul class="pagination pagination-sm ml-auto">
     {% if compounds.has_previous %}
     <li class="page-item">
       <a class="page-link" href="?{% url_replace request 'page' compounds.previous_page_number  %}" aria-label="Previous">