Adding in aria-label for settings button. Fixes #370

Author: jonathanKingston

src/_locales/en_US/messages.json

@@ -40,7 +40,10 @@
     "message": "Powered by Cloudflare®."
   },
   "popupToggleButton": {
-    "message": "Firefox Private Network "
+    "message": "Firefox Private Network"
+  },
+  "popupSettingsButtonLabel": {
+    "message": "Settings"
   },
 
   "toastProxyOff": {

src/view.js

@@ -70,6 +70,7 @@ export class View {
 
   static showSettings(shouldShow) {
     let settingsElement = document.getElementById("settingsButton");
+    settingsElement.setAttribute("aria-label", currentView.getTranslation("popupSettingsButtonLabel"));
     settingsElement.toggleAttribute("hidden", !shouldShow);
   }