fix: 修改textarea示例

pages/component/textarea/textarea.uvue

@@ -10,7 +10,7 @@ export default {
 			confirm_hold_boolean: false,
 			focus_boolean: true,
 			auto_focus_boolean: false,
-      default_value:"",
+      default_value:"1\n2\n3\n4\n5\n6",
       maxlength:-1,
 			inputmode_enum: [{"value":1,"name":"text"},{"value":2,"name":"decimal"},{"value":3,"name":"numeric"},{"value":4,"name":"tel"},{"value":5,"name":"search"},{"value":6,"name":"email"},{"value":7,"name":"url"},{"value":0,"name":"none"}] as ItemType[],
       cursor_color: "#3393E2",