refactor: 修改手写组件

src/components/Written/Written.vue

@@ -188,14 +188,4 @@ onBeforeUnmount(() => {
   ;(inkCanvasRef.value as HTMLCanvasElement).removeEventListener('touchmove', move)
   ;(inkCanvasRef.value as HTMLCanvasElement).removeEventListener('touchend', mouseUp)
 })
-
-defineExpose({
-  updateBound,
-  reload
-})
-
-defineExpose({
-  updateBound,
-  reload
-})
 </script>