fix: improve fullscreen mode

[OneGIl]

• [X] invalid "Exit Fullscreen" button

点击"Fullscreen"按钮后，popper隐藏后的5秒钟后再打开Popper，理应是"Exit Fullscreen"的按钮，结果被初始化为"Fullscreen"，所以在frame-state里保存了viewMode这个状态。

• [X] disabled resize in non "default" view mode

在viewMode是非"default"的情况下，panel是可以继续调整大小的（虽然看起来没有变化），一旦调整后恢复为"default"，则panel会变成错误的大小

• [X] set correct anchor position in fullscreen

在全屏状态下，使用快捷键隐藏panel后，anchor移动到屏幕左下角，且无法改变位置。

• [X] edge case

https://github.com/webfansplz/vite-plugin-vue-devtools/assets/3993028/7a98c5d0-6982-420b-89a3-f0d06342e804

[alexzhang1030]

Hey @OneGIl , can you get my comments?

Like this:

[OneGIl]

Hi~ @alexzhang1030 Is it a problem with my operation? I really can't see your review comments.

[alexzhang1030]

@webfansplz Do you have any idea? And can you see my review comments?