update checkmark state on tabs.onUpdated event

only load on complete

https://github.com/contributor/self-hosted-linkwarden-extension/pull/2#discussion_r2539167168

src/pages/Background/index.ts

@@ -324,10 +324,18 @@ async function checkAndUpdateTab(tabId) {
   }
 }
 
+// Listen for tab switches (to update icon for already-loaded tabs)
 browser.tabs.onActivated.addListener(async ({ tabId }) => {
   await checkAndUpdateTab(tabId);
 });
 
+// Listen for URL changes (navigation, page loads)
+browser.tabs.onUpdated.addListener(async (tabId, changeInfo) => {
+  if (changeInfo.status === 'complete') {
+    await checkAndUpdateTab(tabId);
+  }
+});
+
 // Omnibox implementation
 
 browser.omnibox.onInputStarted.addListener(async () => {