Update views for testability

app/views/admin/application_settings/_email.html.haml

@@ -25,4 +25,4 @@
 
     = render_if_exists 'admin/application_settings/email_additional_text_setting', form: f
 
-  = f.submit _('Save changes'), class: "btn btn-success"
+  = f.submit _('Save changes'), class: "btn btn-success", data: { qa_selector: 'save_changes_button' }

app/views/admin/application_settings/preferences.html.haml

@@ -2,7 +2,7 @@
 - page_title _("Preferences")
 - @content_class = "limit-container-width" unless fluid_layout
 
-%section.settings.as-email.no-animate#js-email-settings{ class: ('expanded' if expanded_by_default?) }
+%section.settings.as-email.no-animate#js-email-settings{ class: ('expanded' if expanded_by_default?), data: { qa_selector: 'email_section' } }
   .settings-header
     %h4
       = _('Email')

app/views/layouts/nav/sidebar/_admin.html.haml

@@ -270,7 +270,7 @@
                   %span
                     = _('Geo')
             = nav_link(path: 'application_settings#preferences') do
-              = link_to preferences_admin_application_settings_path, title: _('Preferences') do
+              = link_to preferences_admin_application_settings_path, title: _('Preferences'), data: { qa_selector: 'admin_settings_preferences_link' } do
                 %span
                   = _('Preferences')