Add category selectors on public scoreboards

app/views/contests/scoreboard.html.slim

@@ -5,14 +5,6 @@ javascript:
     setTimeout(refresh, 5000);
   }
 
-  / const params = new URL(document.location.toString()).searchParams;
-  / if (params.get("refresh") == "1") {
-  /   const el = document.querySelector('input[type="checkbox"]');
-  /   el.checked = true;
-  / }
-
-  / setTimeout(refresh, 5000);
-
 css:
   @media (max-width: 800px) {
     a.btn { display: none; }
@@ -30,6 +22,9 @@ css:
         .mt-2.fs-6 style="text-align: center"
           => "#{puzzle.name} -"
           = "#{puzzle.brand} #{puzzle.pieces}p"
+
+  = render "category_selector"
+
   .row
     .col-6.d-flex.flex-column style="height: calc(100vh - 180px)"
       .d-flex.flex-column style="overflow-y: auto"
@@ -77,6 +72,8 @@ css:
       - @contest.puzzles.each do |puzzle|
         = image_tag(puzzle.image, class: "img-fluid ms-3 me-3", style: "max-height: 220px") if puzzle.image.attached?
 
+    = render "category_selector"
+
     .d-flex.flex-column style="overflow-y: auto"
       table.table.table-striped.table-hover
         thead