No icon in alert in >=2.9.0

[darvsorceix]

Description

After version 2.9.0 showAlert has no icon on the left side of Alert (seems removed from styles). It works correctly on 2.8.0.

Expected result

Alert should contain icon

Actual result

Steps to reproduce

Create default alert on vanillia javascript example:

  document.addEventListener('DOMContentLoaded', function() {
    const settings = {
      text: 'Ut enim ad minim veniam, {goToHome} quis nostrud exercitation ullamco {relativePath}. Duis aute irure dolor {goToOtherProject}',
      type: 'info',
      links: {
        goToHome: { text: 'homepage', url: '/overview' },
        goToOtherProject: { text: 'other project', url: '/projects/pr2' },
        relativePath: { text: 'relative hide side nav', url: 'hideSideNav' },
        neverShowItAgain: { text: 'Never show it again', dismissKey: 'neverShowItAgain' }
      },
      closeAfter: 10000
    };
    LuigiClient
      .uxManager()
      .showAlert(settings)
    ;
  });

[walmazacn]

Indeed this issue was introduced after Fundamental styles upgrade in version 2.9.0:
https://github.com/SAP/luigi/pull/3486/files#diff-7f67769260741e2563407af949f7e54fbf0431d1c607933f6e8a8094e3219e26L12