Fix issue causing the project manager to crash because of missing path argument

In the process, the initialization logic is updated to show an error message and gracefully close the engine when setup errors occur.

platform/android/java/lib/res/values/strings.xml

@@ -12,6 +12,8 @@
     <string name="text_button_resume">Resume Download</string>
     <string name="text_button_cancel">Cancel</string>
     <string name="text_button_cancel_verify">Cancel Verification</string>
+    <string name="text_error_title">Error!</string>
+    <string name="error_engine_setup_message">Unable to setup the Godot Engine! Aborting…</string>
 
     <!-- APK Expansion Strings -->