upd: web push

Deskripsi:
- install package
- table database
- nb : masih blm bisa

No Issues

src/lib/urlB64ToUint8Array.ts

@@ -0,0 +1,13 @@
+export const urlB64ToUint8Array = (base64String: string) => {
+    const padding = "=".repeat((4 - (base64String.length % 4)) % 4);
+    const base64 = (base64String + padding).replace(/-/g, "+").replace(/_/g, "/");
+  
+    const rawData = window.atob(base64);
+    const outputArray = new Uint8Array(rawData.length);
+  
+    for (let i = 0; i < rawData.length; ++i) {
+      outputArray[i] = rawData.charCodeAt(i);
+    }
+    return outputArray;
+  };
+