Add backend for property account details

app/controllers/properties_controller.rb

@@ -0,0 +1,34 @@
+class PropertiesController < ApplicationController
+  before_action :set_account, only: :update
+
+  def create
+    account = Current.family.accounts.create!(account_params)
+    account.sync_later
+    redirect_to account, notice: t(".success")
+  end
+
+  def update
+    @account.update!(account_params)
+    @account.sync_later
+    redirect_to @account, notice: t(".success")
+  end
+
+  private
+
+    def set_account
+      @account = Current.family.accounts.find(params[:id])
+    end
+
+    def account_params
+      params.require(:account)
+        .permit(
+          :name, :balance, :currency, :accountable_type,
+          accountable_attributes: [
+            :id,
+            :year_built,
+            :area,
+            address_attributes: [ :line1, :line2, :locality, :region, :country, :postal_code ]
+          ]
+        )
+    end
+end