fix: add some linux display manager to software-tools.txt

[digger-yu]

Add/Fix Dictionary

Dictionary: software-tools.txt

Description

add some linux display manager to software-tools.txt

References

term	reference.
xfce	https://xfce.org/
lightdm	https://github.com/canonical/lightdm
sddm	https://github.com/sddm/sddm
lxdm	https://wiki.archlinux.org/title/LXDM
xfwm	https://wiki.archlinux.org/title/Xfwm
lxqt	https://lxqt-project.org/
xinit	https://wiki.archlinux.org/title/Xinit

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  • fix: - for minor changes like adding words or fixing spelling issues.
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  • chore: - for changes that do not impact the content of dictionaries.