Import result_footer_rtl in video so it doesn't crash...

searx/templates/oscar/result_templates/videos.html

@@ -1,4 +1,4 @@
-{% from 'oscar/macros.html' import result_header, result_sub_header, result_footer, icon %}
+{% from 'oscar/macros.html' import result_header, result_sub_header, result_footer, result_footer_rtl, icon %}
 
 {{ result_header(result, favicons) }}
 {{ result_sub_header(result) }}