Update with web worker example to utilize the App Router

[Sam-Phillemon9493]

This PR updates the with-web-worker example to use the App Router. Here are the changes that have been made:

• Renamed the pages folder to the app folder.
• Updated the routing for / files to align with the App Router.
• Added the layout.tsx file as part of the App Router.
• Updated the package.json file.

The following actions were performed as part of this PR:

• Ran pnpm prettier-check with no issues found.
• Executed the pnpm check-examples script.

[ijjk]

Allow CI Workflow Run

• approve CI run for commit: 0c0e41c

Note: this should only be enabled once the PR is ready to go and can only be enabled by a maintainer

[Sam-Phillemon9493]

This PR updates the with-web-worker example to use the App Router. Here are the changes that have been made:

• Renamed the pages folder to the app folder.
• Updated the routing for / files to align with the App Router.
• Added the layout.tsx file as part of the App Router.
• Updated the package.json file.

The following actions were performed as part of this PR:

• Ran pnpm prettier-check with no issues found.
• Executed the pnpm check-examples script.

@samcx I recall you mentioned in my previous PR that I should add you as a reviewer directly instead of tagging you in the description. However, I don’t have the necessary permissions to do so. Could you assist with adjusting the access rights or advise me on how to add reviewers?

[samcx]

However, I don’t have the necessary permissions to do so. Could you assist with adjusting the access rights or advise me on how to add reviewers?

Oh interesting, I didn't know that was the case. In that case, feel free to CC me instead.

[samcx]

@Sam-Phillemon9493 Thank you for submitting a PR!

Only thing I changed to be up-to-date is the tsconfig.json file (copied from create-next-app@canary).