Update code to use native webpack require

[MichaelBailly]

When the project was started 3 weeks ago, the webpack configuration has been adapted to be compatible with the codebase.

Now, the codebase can be modified to circumvent some webpack tricks, and use native require() calls. In particular, the following webpack configuration lines:

      /*
      for esn-frontend-common-libs

      can be removed after using a require for emailAddresses instead of a global $window.emailAddresses

        angular.module('esn.email-addresses-wrapper', [])

        .factory('emailAddresses', function($window) {
          return $window.emailAddresses;
        });

      */
      {
        test: require.resolve('email-addresses'),
        loader: 'expose-loader',
        options: {
          exposes: 'emailAddresses',
        },
      },
      /*
      for esn-frontend-common-libs

      can be removed after using a require for autosize instead of a global $window.autosize

      angular.module('esn.form.helper')
        .factory('autosize', function($window) {
            return $window.autosize;
          })

      */
      {
        test: require.resolve('autosize'),
        loader: 'expose-loader',
        options: {
          exposes: 'autosize',
        },
      },
      /*
      for esn-frontend-common-libs

      can be removed after using a require for Autolinker instead of a global $window.Autolinker

      angular.module('esn.autolinker-wrapper', [])

        .factory('autolinker', function($window) {
          return $window.Autolinker;
        });

      */
      {
        test: require.resolve(commonLibsPath + '/src/frontend/components/Autolinker.js/dist/Autolinker.js'),
        loader: 'expose-loader',
        options: {
          exposes: 'Autolinker',
        },
      },
      /*
      for angular-jstz in esn-frontend-common-libs
      */
      {
        test: require.resolve(commonLibsPath + '/src/frontend/components/jstzdetect/jstz.js'),
        loader: 'expose-loader',
        options: {
          exposes: [
            "jstz"
          ],
        },
      },

could be removed by setting up proper requires at the javascript code level.