* Run prettier on the files that will be refactored under @kbn/test, in a follow-up pr.
* Fixup all paths to mocha,
under kbn-test, with needed
exports/imports.
* Fixed borked path (bad refactor).
* Fixup one more borked path.
* Fixup tsconfig for xml.ts
* Drop setup_node_env as it's already
in KIBANA/scripts/mocha.js.
Also, fixup cwd for globby as we are
exec-ing from a different directory.
In https://github.com/elastic/kibana/pull/31234 there were some extra changes that I've reverted, like use of the `tsconfig-paths` package to magically rewrite import statements to defy the standard node module resolution algorithm, the inclusion of several unnecessary options in the `test/tsconfig.json` file, and changes of the line-endings in the config files. This also brings a few enhancements from https://github.com/elastic/kibana/pull/30190 including a modularized version of the expect.js types, and options for explicit mappings for the PageObjects and services used in ftr tests.
