polybar nord theme bugs/improvements

[patrick-motard]

• [x] when volume enters single digits or triple digits the background of the bar is visible and is a different color
• [x] volume modules need more padding
• [x] volume modules need better color
• [ ] (maybe) left and right monitors i3 modules should have a more narrow width. looks better since there is more space since there are less workspaces open on peripheral monitors.
• [ ] (maybe) i3 module should go on right side of left montior and left side of right monitor so that it's more easily visible
• [ ] add pacman/aur updates module (maybe in a bottom bar)
• [ ] add system tray
• [ ] add cpu/ram/hdd
• [ ] add all the modules from nord-arrow theme that are worth porting
• [ ] dunst notifications overlap with polybar
• [ ] the space above the top bar is smaller than the space i3wm places with inner/outer gaps and polybar
• [x] polybar is slightly wider than i3wm windows