fix: reduce swaync notification size and cap popup height

Smaller font (14px → 12px), smaller icon (64px → 36px via CSS variable),
and notification-window-height limit (150px) to prevent oversized popups
from long notification bodies.

defaults/xdg/swaync/config.json

@@ -8,7 +8,7 @@
     "cssPriority": "user",
 
     "notification-window-width": 300,
-    "notification-icon-size": 64,
+    "notification-window-height": 150,
     "notification-body-image-height": 100,
     "notification-body-image-width": 200,
 

defaults/xdg/swaync/style.css

@@ -3,9 +3,10 @@
 
 * {
   all: unset;
-  font-size: 14px;
+  font-size: 12px;
   font-family: "UbuntuSans Nerd Font";
   transition: 200ms;
+  --notification-icon-size: 36px;
 }
 
 trough highlight {