Setup CI tests (#100)

* 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

assets/less/bootstrap/mixins/opacity.less

@@ -4,5 +4,5 @@
   opacity: @opacity;
   // IE8 filter
   @opacity-ie: (@opacity * 100);
-  filter: ~"alpha(opacity=@{opacity-ie})";
+  filter: ~'alpha(opacity=@{opacity-ie})';
 }