Resolve #3453902 "Settings tests"

added 16 commits

b9731609 - 1 commit from branch project:8.x-2.x
b9731609...0305fe86 - 5 earlier commits
009217f5 - phpcs, cspell, eslint amends
98108ac8 - Add a basic field js test
06296490 - Attempt to fix php notice in existing upgrade test
c357e859 - Bail early on skip in upgrade test to avoid php notice due to incompatible code & database
c61db3dc - Check that lazy builder loaded view loads
15598dbd - Add test for pager, fix allow saving without JS enabled for tests but ensure...
606a59c2 - Cover no JS autocomplete and no JS select widget
34570c99 - Remove test for pager to limit scope of this test coverage to supporting no JS
a08f9802 - Merge from 8.x-2.x
4313d9ec - Add test coverage for all views reference settings