Translate all Chinese comments and strings to English

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/main.ts

@@ -94,7 +94,7 @@ app.component('Calendar', Calendar);
 app.component('Checkbox', Checkbox);
 app.component('Dialog', Dialog);
 app.component('ContextMenu', ContextMenu);
-app.component('Draggable', draggable);  // 拖曳
+app.component('Draggable', draggable);  // Drag and drop
 app.directive('tooltip', Tooltip);
 
 app.mount("#app");