ISTWCMS-6266: add catalog teaser icon

images/layout_builder_browser/catalogteaser.svg

+<svg xmlns="http://www.w3.org/2000/svg" width="30" height="30" viewBox="0 0 30 30"><defs><style>.background{fill:#85bef4;}</style></defs><rect class="background" x=".5" y=".5" width="29" height="29"/><path d="m29,1v28H1V1h28m1-1H0v30h30V0h0Z"/><path d="m24.14,5.16H5.86c-1.16,0-2.11.94-2.11,2.11v3.52c0,.39.32.7.7.7h.7v11.95c0,.78.63,1.41,1.41,1.41h16.88c.78,0,1.41-.63,1.41-1.41v-11.95h.7c.39,0,.7-.32.7-.7v-3.52c0-1.16-.94-2.11-2.11-2.11Zm-1.41,17.58H7.27v-11.25h15.47v11.25Zm1.41-13.36H5.86v-2.11h18.28v2.11Zm-11.43,6.33h4.57c.29,0,.53-.24.53-.53v-1.05c0-.29-.24-.53-.53-.53h-4.57c-.29,0-.53.24-.53.53v1.05c0,.29.24.53.53.53Z"/></svg>