optimize dockerfile and copy js library used

resources/views/layouts/backapp.blade.php

@@ -118,7 +118,6 @@ License: You must have a valid license purchased only from themeforest(the above
     
     <!--begin::Common Script -->
     <script src="{{ asset('js/vendor.js') }}"></script>
-    <script src="{{ mix('js/app.js') }}"></script>
     <script src="{{ asset('js/init.js') }}"></script>
     <!--end::Common Scripts -->
     @yield('javascripts')