Tambah fitur notifikasi untuk android

Add:
- android/app/src/main/res/xml/

Fix:
- android/app/src/main/AndroidManifest.xml
- android/build.gradle
- app/(application)/(user)/test-notifications.tsx
- bun.lock
- package.json

### No Issue

android/build.gradle

@@ -6,7 +6,7 @@ buildscript {
     mavenCentral()
   }
   dependencies {
-        classpath 'com.google.gms:google-services:4.4.1'
+    classpath 'com.google.gms:google-services:4.4.1'
     classpath('com.android.tools.build:gradle')
     classpath('com.facebook.react:react-native-gradle-plugin')
     classpath('org.jetbrains.kotlin:kotlin-gradle-plugin')