To a first approximation (noting [exceptions][1]), serviceWorker.ts
is not used in downstream projects. The file is causing a [false
positive from a security scanner][2] so remove it.

[1]: #115 (comment 962064)
[2]: https://gitlab.developers.cam.ac.uk/uis/devops/digital-admissions/pools/smi/-/issues/298

feat: remove unused serviceWorker.ts

Closes #115

See merge request !119