This not only fixes the issue where set -x would cause the read
line to be altered, but also separates user input from what the
install scripts actually do.
I added shortened systemd timeouts when I didn't know how to use
journalctl. But now that I know enough to fix things that might
stall these commands, this is no longer necessary.
Here I commit the addition of VerbosePkgLists for reference. It turns
out that yay's package upgrade list looks significantly better than
pacman's VerbosePkgLists (and is a lot more legible).
Since pacman will not use VerbosePkgLists when the number of terminal
columns is low enough, it makes sense to simply use the default setting
instead.
Instead of running two systemctl commands (start and enable),
one can simply use `systemctl enable --now` instead.
The grub command was removed since I never used it and haven't
found a need to do so.
