Cordova Android doesn't work with resource references

# Bug Report

## Problem
The documentation is unclear. And I tried ChatGPT too. I have this config.xml in the cordova project root.

```xml

```

In the project root I have the `res` folder:

Which contains the assets that match the `resource-file` elements in the `config.xml` but they are not copied into the target folders.

### What is expected to happen?
I want to define: colors.xml, splash.xml, foreground.xml and monochrome.xml in my project root `res` folder and then have those copied across into the android platform as appropriate.

### What does actually happen?
causes an error:
```
Android project created with cordova-android@13.0.0
Source path does not exist: @drawable/ic_launcher_foreground
```

## Information

### Command or Code

`cordova platform remove android; cordova platform add android;`

### Environment, Platform, Device

I'm running cordova on Mac OS X and trying to build it for Android API v13 for emulator.

### Version information

Cordova: 12.0.0 (cordova-lib@12.0.1)
cordova-android@13.0.0
Mac OS X: 14.5 (23F79)
Android Studio Koala | 2024.1.1 Patch 1
Node: v20.15.1

## Checklist

- [x] I searched for existing GitHub issues
- [x] I updated all Cordova tooling to most recent version
- [x] I included all the necessary information above

Start with the supplied config.xml and reproduce using `cordova platform remove android; cordova platform add android;` on cordova-android@13.0.0, focusing on the resource-file and adaptive icon entries. Check the documented resource handling and platform-creation behavior for whether @drawable references can resolve from project-root files. Done means the configuration behaves as documented or the supported configuration and regression coverage are clear.

Written by the indexing model from the issue text.