Refactor Api::Web::SettingsController (#15717)

app/controllers/api/web/settings_controller.rb

@@ -2,17 +2,16 @@
 
 class Api::Web::SettingsController < Api::Web::BaseController
   before_action :require_user!
+  before_action :set_setting
 
   def update
-    setting.data = params[:data]
-    setting.save!
-
+    @setting.update!(data: params[:data])
     render_empty
   end
 
   private
 
-  def setting
-    @_setting ||= ::Web::Setting.where(user: current_user).first_or_initialize(user: current_user)
+  def set_setting
+    @setting = ::Web::Setting.where(user: current_user).first_or_initialize(user: current_user)
   end
 end