Add dividers in collapsed control display

nearest.html

@@ -81,11 +81,14 @@
       <input autocomplete="off" type="checkbox" id="all-control-toggle" class="toggle-button" role="button">
       <label for="all-control-toggle" style="min-width: 1.1em; display: inline-block;">
         <div class="toggle-off" style="writing-mode: vertical-rl">► Controls</div>
+        <hr class="toggle-off" style="color: var(--highlight); margin-top: 1em;" />
         <div class="toggle-off" style="margin-top: 16px; text-align: center;" id="collapsed-sort"></div>
         <div class="toggle-off" style="margin-top: 16px; text-align: center;" id="collapsed-fn-name"></div>
+        <hr class="toggle-off" style="color: var(--highlight); margin-top: 1em;" />
         <div class="toggle-off" style="margin-top: 16px; text-align: center;" id="collapsed-cluster-sort"></div>
         <div class="toggle-off" style="margin-top: 16px; text-align: center;" id="collapsed-cluster"></div>
         <div class="toggle-off" style="margin-top: 16px; text-align: center;" id="collapsed-cluster-scale"></div>
+        <hr class="toggle-off" style="color: var(--highlight); margin-top: 1em;" />
         <div class="toggle-off" style="margin-top: 16px; text-align: center;" id="collapsed-scale"></div>
         <div class="toggle-on">▼ Controls</div>
       </label>