fix(browser): log ErrorEvent.message when unhandled ErrorEvent.error is null#9322

sheremet-va merged 5 commits intovitest-dev:mainvitest-dev/vitest:mainfrom

hi-ogawa:12-22-fix_browser_check_errorevent_as_unhandled_errorhi-ogawa/vitest:12-22-fix_browser_check_errorevent_as_unhandled_errorCopy head branch name to clipboard