elections2021: Link to the calendar from the top

Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>

elections2021/templates/elections2021/base.html

@@ -74,6 +74,9 @@
                     <i class="ico--home"></i> <span>{{ link.value.title }}</span>
                   </a>
                 {% endfor %}
+                <a href="{{ page.root_page.calendar_page_url }}" class="icon-link contact-line block lg:inline-block opacity-60 hover:opacity-90">
+                  <i class="ico--calendar"></i> <span>Kalendář akcí</span>
+                </a>
               </div>
             </div>
             <div v-if="show || isLgScreenSize" class="navbar__main navbar__section navbar__section--expandable container-padding--zero lg:container-padding--auto">