### Commit Message
- Integrated Google OSS Licenses Plugin to display the licenses of third-party libraries used in the app.
- Added the plugin to app-level Gradle file and included the required dependencies.
- Created a pre-built activity (`OssLicensesMenuActivity`) to show the licenses, accessible via a button/menu.
- Verified the implementation, ensuring the licenses are displayed correctly.
- Tested on release builds to confirm functionality and compliance.
This implementation ensures transparency and complies with open-source license requirements.
### Summary
- Updated the project structure using the latest Android Studio template.
- Migrated portions of the codebase from Java to Kotlin for improved readability and maintainability.
### Details
- Refactored and reorganized files according to the new Android Studio project template to ensure compatibility with the latest project standards.
- Migrated key Java classes to Kotlin, adopting Kotlin idioms and improving type safety.
- Verified that core functionalities remain intact after migration and update.
- Removed redundant Java files and updated imports where necessary.
### Notes
- Further Kotlin migration may be needed as additional Java files are reviewed.
- Test thoroughly to confirm that all functionalities work as expected after these changes.
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