Bug 1621096 - Land WNPanel message for 75 r=fluent-reviewers,flod

Differential Revision: https://phabricator.services.mozilla.com/D66106

--HG--
extra : moz-landing-system : lando

browser/components/newtab/lib/PanelTestProvider.jsm

@@ -73,7 +73,7 @@ const MESSAGES = () => [
       title: { string_id: "cfr-whatsnew-searchbar-title" },
       icon_url: "chrome://browser/skin/search-glass.svg",
       icon_alt: { string_id: "cfr-whatsnew-searchbar-icon-alt-text" },
-      body: { string_id: "cfr-whatsnew-searchbar-body-enginename" },
+      body: { string_id: "cfr-whatsnew-searchbar-body-topsites" },
       cta_url:
         "https://support.mozilla.org/1/firefox/%VERSION%/%OS%/%LOCALE%/address-bar-search",
       cta_type: "OPEN_URL",

browser/locales/en-US/browser/newtab/asrouter.ftl

@@ -144,10 +144,7 @@ cfr-whatsnew-lockwise-take-link-text = Get the app
 ## Search Bar
 
 cfr-whatsnew-searchbar-title = Type less, find more with the address bar
-# Variables:
-#   $searchEngineName - Name of the current default search engine as also shown in the urlbar.
-cfr-whatsnew-searchbar-body-enginename = Get to the sites you use most with a single click into the address bar. Find things faster with results from { $searchEngineName } and your browsing history.
-cfr-whatsnew-searchbar-body-generic = Get to the sites you use most with a single click into the address bar. Find things faster with search results from your browsing history.
+cfr-whatsnew-searchbar-body-topsites = Now, just select the address bar, and a box will expand with links to your top sites.
 cfr-whatsnew-searchbar-icon-alt-text = Magnifying glass icon
 
 ## Picture-in-Picture