Native SPA

Goals : writing a small SPA with minimal dependencies and no framework This is an experimentation for:
HTML data-* attributes
history API
Fetch API
Web components
Web crypto api
Accessibility
...

todo

snackbar, for showing feedback to users (for instance 'the book has been sucessfully deleted')
correct book pages access and display
test the provided API URL to check if the API is responding, if not, feedback the user and allow him to correct his input