reinstate diff between 10.1.2 and 10.1.3 minus @jest/globals support + misc

[mulekick]

Summary

This pull request contains :

1. The diff between 10.1.2 and 10.1.3 minus the non-working additional declaration for @jest/globals imports support (see 602)
2. An edit of the rewritten main README to fix the example tests, remove any reference to the use of @jest/globals for imports and explicitly mention that it is not supported.
3. An edit of the jest-environment-puppeteer README to align with the current recommended setup for Typescript and point to the new puppeteer docs.
4. An additional basic test for the expect-puppeteer matchers with @jest/globals imports, disabled for now.

Test plan

1. Test suite passes 100%.