Lots of general clean up and fixes.

src/routes/events_leads/exhibit/[slug]/leads_manage.svelte

@@ -149,6 +149,19 @@ export let get_event_exhibit_tracking_export = async function get_event_exhibit_
 
 {#if $events_loc?.leads.auth_exhibit_kv[$events_slct.exhibit_id]}
 
+    Auto hide on sign in:
+    <button
+        type="button"
+        on:click={() => {
+            console.log('Auto hide on sign in');
+            $events_loc.leads.auto_hide_on_sign_in = !$events_loc.leads.auto_hide_on_sign_in;
+        }}
+        class="btn btn-sm variant-soft w-48"
+        >
+        <span class="fas fa-eye-slash mx-1"></span>
+        Turn {$events_loc.leads.auto_hide_on_sign_in ? 'off' : 'on'} auto hide
+    </button>
+
     Turn on iframe mode:
     <button
         type="button"