feat: setting button

[Draculabo]

Because most users only use Chrome extensions and haven't developed them. They may feel confused about how to set up Lumos extensions. So I added a settings button on the Popup page of Lumos to make it easier for users to access the settings page of Lumos.

[andrewnguonly]

This is great. Thank you!

[andrewnguonly]

@Draculabo, can you make this change off the 1.0.14 branch? This is the next release branch.

Make sure to run npm run lint to check for lint errors and npx prettier src __tests__ --write to fix the errors, if there are any.

[Draculabo]

@Draculabo, can you make this change off the 1.0.14 branch? This is the next release branch.，您可以在 1.0.14 分支上进行此更改吗？这是下一个发布分支。

Make sure to run npm run lint to check for lint errors and npx prettier src __tests__ --write to fix the errors, if there are any.

e

I have already run the command npm run lint, and it looks good.