[BUG] popup dose not spread to the full content

[kamadakohei]

What happened?

After running pnpm create plasmo, check it in your browser using pnpm dev.
The popup does not spread to the full content.

Version

Latest

What OS are you seeing the problem on?

MacOSX

What browsers are you seeing the problem on?

Chrome

Relevant log output

No response

(OPTIONAL) Contribution

• I would like to fix this BUG via a PR

Code of Conduct

• I agree to follow this project's Code of Conduct
• I checked the current issues for duplicate problems.

[kamadakohei]

I have modified this issue with the following PR　
PlasmoHQ/examples#54

[javimbk]

Just want to add that after checking Plasmo's docs today for a few hours and deciding to start my project it was a not so nice experience to have the popup by default not even show up correctly! The experience could improve!