Some packages not installed by default and missing files

[yungParrot]

Hi, I've found two minor bugs.

1. Dunst is not being installed by default
2. Some icons are not installed by default, but are still referenced in .dunstrc

   ➜ ~ dunst
   WARNING: Setting geometry in section global doesn't exist
   WARNING: Setting notification_height in section global doesn't exist
   WARNING: Setting startup_notification in section global doesn't exist
   WARNING: Setting verbosity in section global doesn't exist
   WARNING: Section shortcuts is deprecated.
   Acting on notifications has been moved to its own utility. For more information, see the manual for dunstctl.
   Ignoring this section.
   WARNING: Failed to load image info for /home/brodie/.config/dunst/critical.png
   WARNING: No icon found in path: '/home/brodie/.config/dunst/critical.png'

Edit: I've also found another bug with i3lock, when running the powermenu script and choosing the lock option, a script is supposed to run yet it cannot be found inside the repository :cry:

[codic12]

Thanks. To be consistent with some other editions, I just changed i3lock to slock for now. The icons were from a PR and are now removed, and dunst has been added to the packages file. Don't know how I missed these, thanks! :sweat_smile: