Change smile hotkey to `s`

app/views/answerbox/_actions.html.haml

@@ -1,4 +1,4 @@
-%button.btn.btn-link.answerbox__action{ type: :button, name: "ab-smile", data: { a_id: a.id, action: current_user&.smiled?(a) ? :unsmile : :smile, selection_hotkey: "l" }, disabled: !user_signed_in? }
+%button.btn.btn-link.answerbox__action{ type: :button, name: "ab-smile", data: { a_id: a.id, action: current_user&.smiled?(a) ? :unsmile : :smile, selection_hotkey: "s" }, disabled: !user_signed_in? }
   %i.fa.fa-fw.fa-smile-o
   %span{ id: "ab-smile-count-#{a.id}" }= a.smiles.count
 - unless display_all

app/views/shared/_hotkeys.html.haml

@@ -61,7 +61,7 @@
               %ul.list-group.list-group-flush
                 %li.list-group-item
                   = t('voc.smile')
-                  %kbd l
+                  %kbd s
                 %li.list-group-item
                   = t('.answer.view_comments')
                   %kbd x