Enhance moderation dashboard UI and UX:

- Add HTMX-powered filtering with instant updates
- Add smooth transitions and loading states
- Improve visual hierarchy and styling
- Add review notes functionality
- Add confirmation dialogs for actions
- Make navigation sticky
- Add hover effects and visual feedback
- Improve dark mode support

templates/rides/partials/designer_search_results.html

@@ -0,0 +1,27 @@
+<div class="absolute z-50 w-full mt-1 bg-white border border-gray-300 rounded-lg shadow-lg dark:bg-gray-700 dark:border-gray-600" style="max-height: 240px; overflow-y: auto;">
+    {% if designers %}
+        {% for designer in designers %}
+            <button type="button"
+                    class="w-full px-4 py-2 text-left text-gray-900 hover:bg-gray-100 dark:text-white dark:hover:bg-gray-600"
+                    onclick="selectDesigner('{{ designer.id }}', '{{ designer.name|escapejs }}')">
+                {{ designer.name }}
+            </button>
+        {% endfor %}
+    {% else %}
+        <div class="px-4 py-2 text-gray-700 dark:text-gray-300">
+            {% if search_term %}
+                No matches found. You can still submit this name.
+            {% else %}
+                Start typing to search...
+            {% endif %}
+        </div>
+    {% endif %}
+</div>
+
+<script>
+function selectDesigner(id, name) {
+    document.getElementById('id_designer').value = id;
+    document.getElementById('id_designer_search').value = name;
+    document.getElementById('designer-search-results').innerHTML = '';
+}
+</script>