* use @xarc/xrun to streamline tasks in an imperative manner
* add lint-staged/husky for git hook tasks
* run prettier across all files
* fixing tests
* add ci test workflow
* add a ci workflow
* remove precommit in favor of husky
* add .prettierrc.js
* reformat with prettier
Also simplify copying of polyfill, this change though requires node 8 or newer but this should be fine as node is only necessary to build the extension
