feat: Add an option on the dashboard to allow switching help center layout (#14491)

<img width="633" height="431" alt="Screenshot 2026-05-18 at 12 32 55 PM"
src="https://github.com/user-attachments/assets/682d4c5f-4c76-465b-8d2f-92fbc2bb2a40"
/>

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Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>
Co-authored-by: iamsivin <iamsivin@gmail.com>

app/controllers/api/v1/accounts/portals_controller.rb

@@ -78,7 +78,9 @@ class Api::V1::Accounts::PortalsController < Api::V1::Accounts::BaseController
   def portal_params
     params.require(:portal).permit(
       :id, :color, :custom_domain, :header_text, :homepage_link,
-      :name, :page_title, :slug, :archived, { config: [:default_locale, { allowed_locales: [] }, { draft_locales: [] }] }
+      :name, :page_title, :slug, :archived,
+      { config: [:default_locale, :layout, { allowed_locales: [] }, { draft_locales: [] },
+                 { social_profiles: %i[facebook x instagram linkedin youtube tiktok github whatsapp] }] }
     )
   end