Integrate shared scoreboard links in contests

app/views/contests/index.html.slim

@@ -2,6 +2,8 @@
   .col
     h4.mb-3
       = t("contests.index.manage_contests")
+      a.ms-3.btn.btn-primary href="/events"
+        = t("events.show.back_to_events")
       .float-end
         a.btn.btn-primary.mb-4 href=new_contest_path
           = t("contests.index.new_contest")
@@ -9,7 +11,7 @@
 .alert.alert-primary role="alert"
   = t("contests.index.message")
 
-.row.row-cols-1.row-cols-md-3.g-4
+.mt-3.row.row-cols-1.row-cols-md-3.g-4
   - @contests.each do |contest|
     .col
       css:

app/views/layouts/authenticated.html.slim

@@ -91,12 +91,20 @@ html
                   startAutoRefresh(200);
           - elsif active_page("/contests") == "active"
             = @contest.name
-            - if @contest.public
-              a.ms-4.btn.btn-success href="/public/#{@contest.slug}" style="margin-top: -6px;"
-                = t("contests.show.open_public_scoreboard")
+            - if @contest.event && @contest.event.shared_scoreboard
+              - if @contest.public
+                a.ms-4.btn.btn-success href="/public/event/#{@contest.event.slug}?contest_id=#{@contest.id}" style="margin-top: -6px;"
+                  = t("events.show.open_shared_scoreboard")
+              - else
+                a.ms-4.btn.btn-success.disabled style="margin-top: -6px;"
+                  = t("contests.show.shared_scoreboard_disabled")
             - else
-              a.ms-4.btn.btn-success.disabled style="margin-top: -6px;"
-                = t("contests.show.public_scoreboard_disabled")
+              - if @contest.public
+                a.ms-4.btn.btn-success href="/public/#{@contest.slug}" style="margin-top: -6px;"
+                  = t("contests.show.open_public_scoreboard")
+              - else
+                a.ms-4.btn.btn-success.disabled style="margin-top: -6px;"
+                  = t("contests.show.public_scoreboard_disabled")
           - else
             = @contest.name
         - else