Add about page with feedback functionality

app/controllers/user_controller.rb

@@ -197,6 +197,11 @@ class UserController < Users::ApplicationController
     end
   end
 
+  def feedback
+    UserFeedback.create(user_id: current_user.id, content: params[:feedback].to_s)
+    render json: {}
+  end
+
   # POST /user/needs_help.json
   def needs_help
     respond_to do |format|