donate: Responsive top links

donate/templates/donate/base.html

@@ -109,6 +109,14 @@
             <a class="nav-link" href="{{ page.root_page.regions_page_url }}">Kraje</a>
           </li>
         </ul>
+        {% if page.root_page.custom_url_1 and page.root_page.custom_url_1_text %}
+            <a href="{{ page.root_page.custom_url_1 }}" class="d-block d-lg-none mb-3 header_link header_link--desktop" target="_blank"
+               rel="noreferrer"><i class="icon-external-link mr-2" title="Ikona odkazu"></i>{{ page.root_page.custom_url_1_text }}</a>
+        {% endif %}
+        {% if page.root_page.custom_url_2 and page.root_page.custom_url_2_text %}
+            <a href="{{ page.root_page.custom_url_2 }}" class="d-block d-lg-none mb-3 header_link header_link--desktop" target="_blank"
+               rel="noreferrer"><i class="icon-external-link mr-2" title="Ikona odkazu"></i>{{ page.root_page.custom_url_2_text }}</a>
+        {% endif %}
         <a href="https://www.pirati.cz/" class="d-block d-lg-none mb-3 header_link header_link--mobile"  target="_blank" rel="noreferrer"><i class="icon-external-link mr-2" title="Ikona odkazu"></i>www.pirati.cz</a>
       </div><!-- /navigation -->
     </div><!-- /container -->