Map share_target to ACTION_SEND in TWA APK Generator

Feature Request: When generating an Android APK via the TWA builder, the system currently ignores the share_target configuration defined in the manifest.json.

The Use Case: Our Progressive Web App relies on receiving shared files seamlessly from other native Android applications. While a standard Chrome "Add to Home Screen" installation respects the share_target and successfully registers our app in the native Android Share menu, the APK generated by your platform does not.

Technical Requirement: Please update the TWA APK generator to parse the share_target configuration and automatically inject the corresponding <intent-filter> blocks (specifically ACTION_SEND and ACTION_SEND_MULTIPLE) into the AndroidManifest.xml.

The generator should ideally map the accept arrays to support standard file-handling MIME types, such as:

• application/pdf

• image/*

• Standard document types (e.g., application/msword, application/vnd.ms-excel)