add the app url input on the first setup page

app/controllers/profile_controller.rb

@@ -1,6 +1,10 @@
 # frozen_string_literal: true
 
 class ProfileController < ApplicationController
+  before_action :load_encrypted_config, only: %i[index update_app_url]
+
+  def index; end
+
   def update_contact
     if current_user.update(contact_params)
       redirect_to settings_profile_index_path, notice: 'Contact information successfully updated'
@@ -18,8 +22,23 @@ class ProfileController < ApplicationController
     end
   end
 
+  def update_app_url
+    if @encrypted_config.update(app_url_params)
+      Docuseal.refresh_default_url_options!
+
+      redirect_to settings_profile_index_path, notice: 'App URL successfully changed'
+    else
+      render :index, status: :unprocessable_entity
+    end
+  end
+
   private
 
+  def load_encrypted_config
+    @encrypted_config =
+      EncryptedConfig.find_or_initialize_by(account: current_account, key: EncryptedConfig::APP_URL_KEY)
+  end
+
   def contact_params
     params.require(:user).permit(:first_name, :last_name, :email, account_attributes: %i[name])
   end
@@ -27,4 +46,8 @@ class ProfileController < ApplicationController
   def password_params
     params.require(:user).permit(:password, :password_confirmation)
   end
+
+  def app_url_params
+    params.require(:encrypted_config).permit(:value)
+  end
 end