Back to using onHistoryStateUpdated

I think this is only triggered on trello.com pages, whereas the
tabs API was overzealously triggering on every page.

Author: sudonatalie

js/background.js

@@ -1,8 +1,8 @@
 const boardUrl = 'trello.com/b/';
 
-chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab) {
+chrome.webNavigation.onHistoryStateUpdated.addListener(function(details) {
   // Match Trello board pages only
-  const match = tab.url.includes(boardUrl);
+  const match = details.url.includes(boardUrl);
 
   // Setup page for layout changes and show page action
   if (match) {

manifest.json

@@ -16,8 +16,8 @@
   "permissions": [
     "*://trello.com/b/*",
     "declarativeContent",
-    "tabs",
-    "storage"
+    "storage",
+    "webNavigation"
   ],
   "web_accessible_resources": [
     "css/layout.css"