refactor of yuck files

.config/eww/widgets/datetime.yuck

@@ -1,7 +1,8 @@
 (defwidget datetime []
-  (box :class "datetime"
-       :halign "center"
-       :valign "center"
+  (box
+    :class "datetime"
+    :halign "center"
+    :valign "center"
     { time == ''
       ? ''
       : time
@@ -10,8 +11,9 @@
 )
 
 (defvar time-visible false)
-(defpoll time :interval "1s"
-              :initial "initial-value"  ; optional, defaults to poll at startup
-              :run-while time-visible   ; optional, defaults to 'true'
+(defpoll time
+  :interval "1s"
+  :initial "initial-value"  ; optional, defaults to poll at startup
+  :run-while time-visible   ; optional, defaults to 'true'
   `date +"%H:%M - %a, %d %b"`        ; https://www.man7.org/linux/man-pages/man1/date.1.html
 )