[MERGE WITH Backend] New literature request form and fixes

[ntarocco]

• Add new RJSF widgets for form input that reference other records
• Improve error and success notifications with RSJForms
• Finalize form for new literature requests
• Partially redesign the details view to have it more similar to other backoffice pages
• partially closes #334

WARNING To be merged with backend https://github.com/inveniosoftware/invenio-app-ils/pull/1034

[ntarocco]

It would be nice if the literature request details were inside a container (like in document details) instead of fully expanding to the sides of the screen. Also since document pid is not required in the form maybe it should have an empty option in case we want to remove it.

Makes sense for the container! Is it ok if I do it in the next one since I will have to work on the layout?

For the document pid, it is already the case, just not very visible, that's why Javier was suggesting to add - instead. I was actually thinking to remove from the form the document_pid field since it can be changed from the details page...