removing some css, creating new libriaries and apply it to templates

core/modules/system/system.libraries.yml

core/modules/system/templates/item-list.html.twig

core/modules/system/templates/progress-bar.html.twig

.../modules/system/templates/status-report-counter.html.twig

...les/system/templates/status-report-general-info.html.twig

core/modules/system/templates/status-report-page.html.twig

...modules/system/templates/system-modules-details.html.twig

core/modules/system/templates/tablesort-indicator.html.twig