Create base pages for groups of commands

[Managor]

As is seen in #19721, there are many commands that separate subcommand functionality into diffeferent binaries. It might be worth it to create base pages that forward the user to the appropriate pages.

If you run find . -type f -printf "%f\n" | cut -d - -f 1 | cut -d . -f 1 | sort | uniq -c | sort -n in a platform directory, it is much easier to find these groups.

Also, let us limit the base pages to commands that contain the base text in themselves like transmission. I do not want to start documenting based on package names.

Groups

• elasticsearch-
• llvm-
• virt- (might be two projects intertwined)
• qemu-
• gst-
• redis-
• systemd-
• pw-
• steamos-
• grub-
• xdg-
• rpicam-
• plasma-
• gnome-
• po4a-
• cockpit-
• avahi-
• ubuntu-
• nixos-
• cpufreq-
• spa-
• gitlab-

Please research if the pages are even related before making a base page