Fix (and suppress) eslint errors

src/js/background/messageHandler.js

@@ -82,6 +82,7 @@ const messageHandler = {
         if (!extensionInfo.permissions.includes("contextualIdentities")) {
           throw new Error("Missing contextualIdentities permission");
         }
+        // eslint-disable-next-line require-atomic-updates
         externalExtensionAllowed[sender.id] = true;
       }
       let response;

src/js/popup.js

@@ -259,6 +259,7 @@ const Logic = {
 
   getPanelSelector(panel) {
     if (this._onboardingVariation === "securityOnboarding" &&
+    // eslint-disable-next-line no-prototype-builtins
       panel.hasOwnProperty("securityPanelSelector")) {
       return panel.securityPanelSelector;
     } else {