The cleanup_lxc function now supports package manager cleanup for Fedora, Rocky, AlmaLinux, CentOS (dnf/yum), openSUSE (zypper), and Gentoo (emerge), in addition to Alpine and Debian/Ubuntu. All package manager and language tool cleanup commands now suppress error output for robustness. JSON files were reformatted for consistent indentation.
Introduces container setup scripts and install scripts for AlmaLinux, CentOS Stream, Devuan, Fedora, Gentoo, openEuler, openSUSE, Rocky Linux, and updates Alpine install script. Adds corresponding JSON metadata files for each distribution in the frontend. These changes enable streamlined LXC container creation and installation for a wide range of Linux distributions.
