Merge branch 'eduardosanz/delete-body_data_page' into 'master'

Replace `body_data_page` by `body_data`

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/142659



Merged-by: Natalia Tepluhina <ntepluhina@gitlab.com>
Approved-by: Mark Chao <mchao@gitlab.com>
Approved-by: Natalia Tepluhina <ntepluhina@gitlab.com>
Co-authored-by: Eduardo Sanz García <esanz-garcia@gitlab.com>

app/views/layouts/fullscreen.html.haml

 !!! 5
 %html{ class: [user_application_theme, page_class], lang: I18n.locale }
   = render "layouts/head"
-  %body{ class: "#{user_tab_width} #{@body_class} fullscreen-layout", data: { page: body_data_page } }
+  %body{ class: "#{user_tab_width} #{@body_class} fullscreen-layout", data: body_data }
     = render 'peek/bar'
     = header_message
     .gl--flex-full.gl-h-full

app/views/layouts/signup_onboarding.html.haml

@@ -3,7 +3,7 @@
 !!! 5
 %html.html-devise-layout{ class: user_application_theme, lang: I18n.locale }
   = render "layouts/head"
-  %body.signup-page{ class: "#{system_message_class} #{client_class_list}", data: { page: body_data_page } }
+  %body.signup-page{ class: "#{system_message_class} #{client_class_list}", data: body_data }
     = header_message
     = render "layouts/init_client_detection_flags"
     = render "layouts/header/logo_with_title"

app/views/layouts/terms.html.haml

@@ -5,7 +5,7 @@
 %html{ lang: I18n.locale, class: [user_application_theme, page_class] }
   = render "layouts/head"
 
-  %body{ data: { page: body_data_page } }
+  %body{ data: body_data }
     .layout-page.terms{ class: page_class }
       .content-wrapper.gl-pb-5
         .mobile-overlay