Fix notifications

It's a bug in Dunst which causes colours not to be set when you change
the urgency. Workaround by setting colours manually

dunstrc.ini

@@ -324,15 +324,21 @@
 #    summary = *twitter.com*
 #    urgency = normal
 
-# Apparently these don't work! I have no idea why!
 [nextcloud-one-file]
     summary    = Sync Activity
     body       = * has been updated.
     urgency    = low
+    background = "#222222"
+    foreground = "#888888"
+    timeout    = 5
 [nextcloud-more-files]
     summary    = Sync Activity
     body       = * have been updated.
     urgency    = low
+    background = "#222222"
+    foreground = "#888888"
+    timeout    = 5
+
 
 
 # vim: set ts=4 sw=4 et ft=cfg :