Work on help information for session search and session view

src/routes/events_pres_mgmt/event/[slug]/+page.svelte

@@ -12,6 +12,7 @@ import type { key_val } from '$lib/ae_stores';
 import { ae_util } from '$lib/ae_utils';
 import { api } from '$lib/api';
 import Element_ae_crud from '$lib/element_ae_crud.svelte';
+import Element_data_store from '$lib/element_data_store.svelte';
 
 import { liveQuery } from "dexie";
 import { core_func } from '$lib/ae_core_functions';
@@ -210,6 +211,40 @@ $: if ($events_trigger == 'load__event_session_obj_li' && $events_slct.event_id)
     >
 
 
+<div class="pres_mgmt__session_search_help flex flex-col items-center space-y-2">
+<div>
+<button
+    type="button"
+    on:click={() => {
+        $events_loc.pres_mgmt.show_content__session_search_help = !$events_loc.pres_mgmt.show_content__session_search_help;
+    }}
+    class="btn btn-sm m-1 variant-soft-tertiary text-info-300 hover:text-info-800"
+    title="Help and information about the session search"
+    >
+    <span class="fas fa-question-circle mx-1"></span>
+    {#if $events_loc.pres_mgmt.show_content__session_search_help}
+        Hide
+    {:else}
+        Show
+    {/if}
+    Help
+</button>
+</div>
+
+<Element_data_store
+    ds_code="events__pres_mgmt__session_search_help"
+    ds_name="Default: Events - Pres Mgmt Session Search Help"
+    ds_type="html"
+    for_type="event"
+    for_id={$events_slct.event_id}
+    class_li="bg-yellow-100 p-2 rounded-md border border-yellow-200"
+    show_edit={false}
+    show_edit_btn={true}
+    hide={!$events_loc.pres_mgmt.show_content__session_search_help}
+    />
+</div>
+
+
 {#if $events_slct.event_id && $event_obj}
 <h2 class="h3 text-center">{$event_obj.name}</h2>
 <h3 class="h4 text-center">Presentation Management Hub</h3>