fix: UI polish and provider fixes

- Add animate-pulse CSS animation for loading states
- Add Ctrl+I/Ctrl+B markdown shortcuts in chat input
- Improve chat input resize with mirror element
- Add reasoning duration display and shimmer effect
- Add confirmation dialog for deleting all models
- Simplify RowVirtualizerDynamic resize handling
- Fix DialogType imports (type -> value)
- Fix ollama cloud model name resolution
- Make vllm auth header optional
- Various icon and styling fixes

app/components/Sidenav/NavAgent.vue

@@ -182,7 +182,7 @@ onMounted(() => {
 
                             <div data-action="toggle-dropdown"
                                 class="text-[var(--text-secondary)] shrink-0 w-0 max-w-0 opacity-0 overflow-hidden p-1 max-md:w-auto max-md:max-w-none max-md:opacity-100 flex items-center justify-center rounded-md @hover:bg-[var(--color-hover)] focus-visible:bg-[var(--color-hover)]"
-                                :class="route.params.topicId === topic.id ? 'w-auto max-w-none opacity-100' : 'group-hover:w-auto group-hover:max-w-none group-hover:opacity-100'">
+                                :class="(route.params.topicId === topic.id || (dropdownOpen && activeMenuTopicId === topic.id)) ? 'w-auto max-w-none opacity-100' : 'group-hover:w-auto group-hover:max-w-none group-hover:opacity-100'">
                                 <span class="pointer-events-none h-6 w-6 md:h-4.5 md:w-4.5 i-tabler-dots"></span>
                             </div>
                         </a>