Rebrand Firefox Account

* Change Firefox Account to account
* Add brand=mozilla to accounts.firefox.com URLs

src/js/popup.js

@@ -675,7 +675,7 @@ Logic.registerPanel(P_ONBOARDING_7, {
     // Let's move to the containers list panel.
     Utils.addEnterHandler(document.querySelector("#sign-in"), async () => {
       browser.tabs.create({
-        url: "https://accounts.firefox.com/?service=sync&action=email&context=fx_desktop_v3&entrypoint=multi-account-containers&utm_source=addon&utm_medium=panel&utm_campaign=container-sync",
+        url: "https://accounts.firefox.com/?service=sync&action=email&context=fx_desktop_v3&entrypoint=multi-account-containers&utm_source=addon&utm_medium=panel&utm_campaign=container-sync&brand=mozilla",
       });
       await Logic.setOnboardingStage(7);
       Logic.showPanel(P_ONBOARDING_8);

src/options.html

@@ -40,7 +40,7 @@
           </div>
         </div>
       </div>
-      <h3 data-i18n-message-id="firefoxAccountsSync"></h3>
+      <h3 data-i18n-message-id="sync"></h3>
       <div class="settings-group">
         <label>
           <input type="checkbox" id="syncCheck">

src/popup.html

@@ -44,7 +44,7 @@
   <div class="panel onboarding onboarding-panel-6 hide" id="onboarding-panel-6">
     <img class="onboarding-img" alt="" src="/img/Sync.svg" />
     <h3 class="onboarding-title" data-i18n-message-id="onboarding-6-header"></h3>
-    <p data-i18n-message-id="onboarding-6-description"></p>
+    <p data-i18n-message-id="onboarding-6-description-2"></p>
     <div class="half-button-wrapper">
       <a href="#" id="no-sync" class="half-onboarding-button grey-button keyboard-nav" tabindex="0" data-i18n-message-id="notNow"></a>
       <a href="#" id="start-sync-button" class="half-onboarding-button keyboard-nav" tabindex="0" data-i18n-message-id="startSyncing"></a>
@@ -53,8 +53,8 @@
 
   <div class="panel onboarding onboarding-panel-7 hide" id="onboarding-panel-7">
     <img class="onboarding-img" alt="" src="/img/Account.svg" />
-    <h3 class="onboarding-title" data-i18n-message-id="onboarding-7-header"></h3>
-    <p data-i18n-message-id="onboarding-7-description"></p>
+    <h3 class="onboarding-title" data-i18n-message-id="onboarding-7-header-2"></h3>
+    <p data-i18n-message-id="onboarding-7-description-2"></p>
     <div class="half-button-wrapper">
       <a href="#" id="no-sign-in" class="half-onboarding-button grey-button keyboard-nav" tabindex="0" data-i18n-message-id="notNow"></a>
       <a href="#" id="sign-in" class="half-onboarding-button keyboard-nav" tabindex="0" data-i18n-message-id="signIn"></a>