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/js/devtools.js

@@ -2,11 +2,11 @@
 
 // Create a connection to the background page
 var backgroundPageConnection = browser.runtime.connect({
-    name: "devtools-page"
+  name: 'devtools-page',
 });
 
 // Send a message to background page with the current active tabId
 backgroundPageConnection.postMessage({
-    name: 'init',
-    tabId: browser.devtools.inspectedWindow.tabId
+  name: 'init',
+  tabId: browser.devtools.inspectedWindow.tabId,
 });