fix: use gradient overlay instead of box-shadow for status bar shadow

The box-shadow rendered outside the pseudo-element, placing the shadow
below the status bar boundary. Switch to a multi-stop linear gradient
inside the element so the shadow fades smoothly through the status bar
area (+20% overshoot for softer transition).

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.21.0",
+	"version": "1.21.1",
 	"private": true,
 	"type": "module",
 	"scripts": {