Upgrade Stylelint to v16

[adamkudrna]

• Upgrade Stylelint to v16 and @visionappscz/stylelint-config to v4.0.0-beta1

  For now, the order plugin is being repeatedly disabled in places where the new config requires line rules to precede block rules. This may be addressed in the new version of the config.

• Introduce @stylistic/stylelint-plugin to watch over stylistic rules removed in Stylelint 16

• Restrict React version to 18.2.x to prevent tests from failing due to deprecation warnings

  Also, remove npm from "engines" as it is not an engine.

Closes #484

[adamkudrna]

Chaning label as this is a dependency upgrade in the first place.