Add functionality to delete tasks with a confirmation dialog

Implement task deletion with optimistic UI updates, confirmation dialogs using Shadcn UI's AlertDialog, and API integration for backend task removal. Includes i18n support for delete confirmation messages.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: ceced2fc-aa46-458d-ba87-ddd4b7bb1518
Replit-Commit-Checkpoint-Type: intermediate_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/659922a9-0087-461c-90dd-6d9a58b81d4d/ceced2fc-aa46-458d-ba87-ddd4b7bb1518/nn5bWKE

client/src/components/TasksWithCalendar.tsx

@@ -15,6 +15,7 @@ interface TasksWithCalendarProps {
   tasks: Task[];
   onTaskUpdate?: (taskId: string, updates: Partial<Task>) => void;
   onTaskEdit?: (task: Task) => void;
+  onTaskDelete?: (taskId: string) => void;
   onStartTimer?: (taskId: string) => void;
   onStopTimer?: (taskId: string) => void;
 }
@@ -22,7 +23,7 @@ interface TasksWithCalendarProps {
 type SortOption = 'dueDate' | 'priority' | 'title' | 'status';
 type FilterOption = 'all' | 'todo' | 'inProgress' | 'done' | 'overdue';
 
-export default function TasksWithCalendar({ tasks, onTaskUpdate, onTaskEdit, onStartTimer, onStopTimer }: TasksWithCalendarProps) {
+export default function TasksWithCalendar({ tasks, onTaskUpdate, onTaskEdit, onTaskDelete, onStartTimer, onStopTimer }: TasksWithCalendarProps) {
   const [searchQuery, setSearchQuery] = useState('');
   const [sortBy, setSortBy] = useState<SortOption>('dueDate');
   const [filterBy, setFilterBy] = useState<FilterOption>('all');
@@ -304,6 +305,10 @@ export default function TasksWithCalendar({ tasks, onTaskUpdate, onTaskEdit, onS
                     onTaskEdit?.(task);
                     console.log(`Edit task ${task.title}`);
                   }}
+                  onDelete={() => {
+                    onTaskDelete?.(task.id);
+                    console.log(`Delete task ${task.title}`);
+                  }}
                   onStatusChange={(newStatus) => {
                     if (newStatus === 'done') {
                       handleTaskComplete(task);