feat: Super admin design improvements (#8517)

- Revamp the super admin design
- Introduce a new settings page for support and billing settings
- Move the access tokens into users, agent bots and platform app show pages


Co-authored-by: Sojan <sojan@pepalo.com>
Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/controllers/super_admin/settings_controller.rb

@@ -0,0 +1,10 @@
+class SuperAdmin::SettingsController < SuperAdmin::ApplicationController
+  def show; end
+
+  def refresh
+    Internal::CheckNewVersionsJob.perform_now
+    # rubocop:disable Rails/I18nLocaleTexts
+    redirect_to super_admin_settings_path, notice: 'Instance status refreshed'
+    # rubocop:enable Rails/I18nLocaleTexts
+  end
+end