Board View, sort cards also in mobile view

client/components/boards/boardHeader.jade

@@ -80,6 +80,12 @@ template(name="boardHeaderBar")
             if $eq watchLevel "muted"
               i.fa.fa-bell-slash
             span {{_ watchLevel}}
+          a.board-header-btn(title="{{_ 'sort-cards'}}" class="{{#if isSortActive }}emphasis{{else}} js-sort-cards {{/if}}")
+            i.fa.fa-sort
+            span {{#if isSortActive }}{{_ 'Sort is on'}}{{else}}{{_ 'sort-cards'}}{{/if}}
+            if isSortActive
+              a.board-header-btn-close.js-sort-reset(title="Remove Sort")
+                i.fa.fa-times-thin
 
         else
           a.board-header-btn.js-log-in(