Convert JSONAPI ResourceTestBase to a kernel test

Problem/Motivation

Since this is for tests of JSON resources, there is no checking of any HTML. Therefore, this test base (and thus the tests that subclass this) could be a kernel test instead.

This would convert 17 browser tests to kernel tests.

Steps to reproduce

Proposed resolution

Merge request link

Remaining tasks

User interface changes

API changes

Data model changes

Release notes snippet