UX: soften the "problems" alert on dashboard

app/assets/javascripts/admin/templates/dashboard-problems.hbs

@@ -2,7 +2,7 @@
   <div class="section dashboard-problems">
     <div class="section-title">
       <h2>
-        {{d-icon "exclamation-triangle"}}
+        {{d-icon "heart"}} *wumpus
         {{i18n 'admin.dashboard.problems_found'}}
       </h2>
     </div>

config/locales/client.en.yml

@@ -2877,7 +2877,7 @@ en:
         version_check_pending: "Looks like you upgraded recently. Fantastic!"
         installed_version: "Installed"
         latest_version: "Latest"
-        problems_found: "Some problems have been found with your installation of Discourse:"
+        problems_found: "Some advice based on your current site settings:"
         last_checked: "Last checked"
         refresh_problems: "Refresh"
         no_problems: "No problems were found."