fix: config with multiple bundle ids (#1816)

closes NativeScript/NativeScript#10587

Author: NathanWalker

Diff for: test-app/app/build.gradle

@@ -192,11 +192,14 @@ def computeNamespace = { ->
 
         def appIdentifier = ""
 
-        if (packageJsonMap && packageJsonMap.id) {
-            appIdentifier = packageJsonMap.id
+        if (packageJsonMap) {
+            if (packageJsonMap.android && packageJsonMap.android.id) {
+                appIdentifier = packageJsonMap.android.id
+            } else if (packageJsonMap.id) {
+                appIdentifier = packageJsonMap.id
+            }
         }
 
-
         if (appIdentifier) {
             return appIdentifier
         }