Add dunst config.

.dotter/global.toml

 [neovim.files.neovim]
     target = "~/.config/nvim/"
     type = "symbolic"
+
+[dunst.files.dunst]
+    target = "~/.config/dunst/"
+    type = "symbolic"

dunst/dunstrc

+[global]
+    font = "Droid Sans 12"
+    markup = yes
+    format = "<b>%s</b>\n%b"
+    sort = yes
+    indicate_hidden = yes
+    alignment = center
+    bounce_freq = 0
+    show_age_threshold = 60
+    word_wrap = yes
+    ignore_newline = no
+    geometry = "400x5-6+30"
+    transparency = 0
+    idle_threshold = 120
+    monitor = 0
+    follow = mouse
+    sticky_history = yes
+    line_height = 0
+    separator_height = 2
+    padding = 8
+    horizontal_padding = 8
+    separator_color = "#585858"
+    startup_notification = false
+    # https://github.com/knopwob/dunst/issues/26#issuecomment-36159395
+    icon_position = left
+    icon_path = /usr/share/icons/Adwaita/16x16/status:/usr/share/icons/Adwaita/16x16/devices
+    frame_width = 1
+    frame_color = "#383838"
+
+[shortcuts]
+    close = ctrl+space
+    close_all = ctrl+shift+space
+    history = ctrl+grave
+    context = ctrl+shift+period
+
+[urgency_low]
+    background = "#181818"
+    foreground = "#E3C7AF"
+    timeout = 5
+
+[urgency_normal]
+    background = "#181818"
+    foreground = "#E3C7AF"
+    timeout = 20
+
+[urgency_critical]
+    background = "#181818"
+    foreground = "#E3C7AF"
+    timeout = 0