Allow users to submit ISBNs with dashes and filter out the dashes on the backend

[laasem]

Is your feature request related to a problem? Please describe.
No. It adds functionality to enhance the user experience by allowing users to submit ISBNs that contain dashes and filtering the dashes out on the backend, instead of showing the user the following error:
We could not complete your request. Please make sure you entered an ISBN-10 with no dashes.

Describe the solution you'd like
In the books#create controller action, we can remove the dashes from params[:isbn] before sending it to BookService using a simple regex like so: "978-3-16-148410-0".gsub(/-/, '')

Additional context
I think this will improve the UX since users may sometimes copy their ISBNs with dashes and then have to remove them manually. If maintainers agree, I can work on this.