user/eww: fix null title

res/eww-wayland/eww.yuck

@@ -16,7 +16,7 @@
 (defpoll petimeb :interval "1s"
   `date "+:%S"`)
 
-(deflisten ltitle "./scripts/title.sh")
+(deflisten ltitle :initial "" "./scripts/title.sh")
 (deflisten lworkspaces :initial "[]" "./scripts/workspaces.sh")
 (deflisten lcurrent_workspace :initial "1" "./scripts/active-workspace.sh")
 

res/eww-wayland/scripts/title.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env sh
 
 out () {
-    if [ -z "$1" ]; then
+    if [ -z "$1" ] || [ "$1" == "null" ]; then
         echo ""
     else
         echo "(box :class \"widget title\" :halign \"center\" :valign \"center\" :vexpand true :hexpand true (label :text \"$1\"))"