Merge pull request #1 from hariks789/hariks789-android-12-patch

Fixed Android 12 explicit export build error

Author: hariks789

android/lib/src/main/AndroidManifest.xml

@@ -31,7 +31,7 @@
                 android:resource="@xml/syncadapter"/>
         </service>
         <service
-            android:name="com.marianhello.bgloc.sync.AuthenticatorService">
+            android:name="com.marianhello.bgloc.sync.AuthenticatorService" android:exported="false">
             <intent-filter>
                 <action android:name="android.accounts.AccountAuthenticator"/>
             </intent-filter>