Fixes for the review made by @javierm

this commit will be merged with the others when the chages
are accepted

app/controllers/application_controller.rb

@@ -27,8 +27,16 @@ class ApplicationController < ActionController::Base
   respond_to :html
   helper_method :current_budget
 
+  before_action :set_user_for_ckeditor_pictures
+
   private
 
+    def set_user_for_ckeditor_pictures
+      if request.path == '/ckeditor/pictures' && request.request_method == 'POST'
+        params['user_id'] = current_user.id
+      end
+    end
+
     def authenticate_http_basic
       authenticate_or_request_with_http_basic do |username, password|
         username == Rails.application.secrets.http_basic_username && password == Rails.application.secrets.http_basic_password