build: update target SDK to 35 for Android 15 support

potentially fixes (#479)

Author: gokadzev

android/app/build.gradle

@@ -31,7 +31,7 @@ if (keystorePropertiesFile.exists()) {
 
 android {
     namespace = "com.gokadzev.musify"
-    compileSdk 34
+    compileSdk 35
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_17
@@ -54,7 +54,7 @@ android {
     defaultConfig {
         applicationId "com.gokadzev.musify"
         minSdk 24
-        targetSdk 34
+        targetSdk 35
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }

android/app/src/main/AndroidManifest.xml

@@ -42,6 +42,7 @@
             android:name="com.ryanheise.audioservice.AudioServiceActivity"
             android:exported="true"
             android:launchMode="singleTop"
+            android:allowCrossUidActivitySwitchFromBelow="false"
             android:taskAffinity=""
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"