dock: add reveal IPCs

quickshell/matugen/templates/niri-colors.kdl

@@ -26,4 +26,11 @@ layout {
     insert-hint {
         color "{{colors.primary.default.hex}}80"
     }
+}
+
+/-recent-windows {
+    highlight {
+        active-color   "{{colors.primary_container.dark.hex}}"
+        urgent-color   "{{colors.error.default.hex}}"
+    }
 }