* fix: update service worker to precache css/js files

* add test

* move to utils

* working tests

* fixes

* lint

* change names

* lint

* change return type

* fix

* fix

* changes

* lint

* rename cache

* lint

* fix comments and remove string[] case

* string |

* Update src/serviceWorker/utils.ts
Co-authored-by: Zach Pomerantz <zzmp@uniswap.org>

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