Statistic nav button shows overlaps with the main Screen's content.

while selecting **Statistic** from the **nav** bar. It overlaps with the main content and **blocks the main screen's content** there is no option to get back . **Re-clicking Statistic doesn't unblock the screen and the content of Statistic still remains there. and result in making the problems for the user.**

通过在导航栏中选择 Statistic 来重现问题，并将结果与链接的屏幕截图进行比较。跟踪 Statistic 视图和主屏幕布局，以确定重叠发生的位置；完成意味着主要内容仍可使用，Statistic 视图可以被关闭或替换，并且再次点击 Statistic 不会让它继续阻挡屏幕。

由索引模型根据 Issue 内容生成。