Dequarantine open_fork_in_web_ide_spec E2E

What does this MR do?

Dequarantines two examples from open_fork_in_web_ide_spec that are passing now. See #284081 (comment 506662934) for more information.

Also updates testcase links with new ones as the old ones are not loading comments due to the amount.

NB the tests were only failing in praefect jobs so to test on your local please use gitlab-qa Test::Integration::Praefect EE -- qa/specs/features/browser_ui/3_create/web_ide/open_fork_in_web_ide_spec.rb --tag quarantine.