Do not show the 'Improve this page' button on the search page (#2294)

Author: seisman

doc/_templates/breadcrumbs.html

@@ -22,7 +22,7 @@
                     <a href="https://github.com/{{ github_repo }}/edit/{{ github_version }}/{{ doc_path }}/{{ example_script }}"
                        class="fa fa-github"> Improve this page</a>
                 {% endif %}
-            {% elif pagename.split("/")[-1] != "genindex" %}
+            {% elif pagename.split("/")[-1] not in ["genindex", "search"] %}
                 <a href="https://github.com/{{ github_repo }}/edit/{{ github_version }}/{{ doc_path }}/{{ pagename }}{{ page_source_suffix }}"
                    class="fa fa-github"> Improve this page</a>
             {% endif %}