feat: improve TaskCard and TagList components, enhance task loading logic

- Updated TaskCard to conditionally render footer elements based on available data (due date, source, completion status).
- Enhanced TagList to visually indicate deleting tags and improved button styles for better UX.
- Modified useTasks hook to refresh tasks only if no initial data is present, optimizing loading behavior.
- Updated TagsPageClient to manage local tags and handle optimistic UI updates during tag deletion.

src/app/page.tsx

@@ -4,7 +4,7 @@ import { HomePageClient } from '@/components/HomePageClient';
 export default async function HomePage() {
   // SSR - Récupération des données côté serveur
   const [initialTasks, initialStats] = await Promise.all([
-    tasksService.getTasks({ limit: 20 }),
+    tasksService.getTasks(),
     tasksService.getTaskStats()
   ]);