feat: added sections for categories

categories/basic-elements.category

categories/basic-system.category

categories/client-soft.category

categories/containerization.category

categories/corporate-infrastructure.category

categories/databases.category

categories/dev-and-emul.category

categories/devtools.category

categories/emulators.category

categories/graphics.category

categories/grp-pol.category

categories/kde.category

categories/mate.category

categories/media.category

categories/network-management.category

categories/network-services.category

categories/printers.category

categories/resource-management.category

categories/scanners.category

categories/system-utilities.category