[Settings] Fix Survey Panelist page back button (#36868)

Fix https://github.com/brave/brave-browser/issues/50559

browser/resources/settings/brave_survey_panelist_page/brave_survey_panelist_page.html

@@ -3,7 +3,7 @@ This Source Code Form is subject to the terms of the Mozilla Public
 License, v. 2.0. If a copy of the MPL was not distributed with this file,
 You can obtain one at https://mozilla.org/MPL/2.0/. -->
 
-<settings-section
+<settings-subpage
   page-title="$i18n{surveyPanelist}">
 
   <settings-toggle-button
@@ -15,4 +15,4 @@ You can obtain one at https://mozilla.org/MPL/2.0/. -->
     on-sub-label-link-clicked="onSurveyPanelistLearnMoreLinkClick_">
   </settings-toggle-button>
 
-</settings-section>
+</settings-subpage>