[web] skip flaky date picker golden tests by @yjbanov in https://github.com/flutter/flutter/pull/111114

110598: expect() in semantic test producing unhelpful output by @pdblasi-google in https://github.com/flutter/flutter/pull/110613

Create consts for service extension names so they can be accessed from tooling by @kenzieschmoll in https://github.com/flutter/flutter/pull/110876

Create consts for foundation service extension names so they can be accessed from tooling by @kenzieschmoll in https://github.com/flutter/flutter/pull/111146

Annual spelling error fix by @gspencergoog in https://github.com/flutter/flutter/pull/111132