chore: keep create-next-app messages and docs the same (#72444)
## What does this PR do?
According to [Installation
docs](https://nextjs.org/docs/getting-started/installation#automatic-installation),
[create-next-app](https://nextjs.org/docs/app/api-reference/cli/create-next-app)
messages are below

However, the real messages are

Unlike the `src/`, `next dev` and `@/*` don't have single quotation.
So I add apostrophes to create-next-app message.
## How did you verify your code works?
I have tested local build package.

Co-authored-by: JJ Kasper <jj@jjsweb.site>