install xfce4-hardware-monitor-plugin

xfce4-hardware-monitor-plugin has been removed from relevant packages.
It’s so bad.
This is the best plugin for hardware monitoring! Thank you, OmegaPhil!

Will install it manually.
Vendor Git: https://git.xfce.org/archive/xfce4-hardware-monitor-plugin/

Download: https://git.xfce.org/archive/xfce4-hardware-monitor-plugin/snapshot/xfce4-hardware-monitor-plugin-1.6.0.tar.gz

Extract:

tar -xf xfce4-hardware-monitor-plugin-1.6.0.tar.gz

Run:

cd xfce4-hardware-monitor-plugin-1.6.0
./autogen.sh

Run as root:

# 1
./configure

# For Manajro 18.1.4
sudo pacman -S libgtop gtkmm
sudo pamac install libgnomecanvasmm
#
./configure --prefix=/usr
# 2
sudo make
# 3
sudo make install