Merge parent repository code and make it work on Android

[neerajgawane]

Fixes #31

• Successfully merged the latest code from the parent repository into our codebase
• Resolved all code conflicts across multiple files
• Fixed broken code and dependencies in various Dart files
• Integrated desktop platform support.

Current Status:

• All Dart code conflicts have been successfully resolved
• Added all new features from parent repository
• UI components are properly integrated
• Still encountering Kotlin/Gradle compatibility issues when building for Android
  • Seeing D8 dexer errors related to Kotlin version mismatches
  • Have attempted multiple approaches to resolve build issues

Note:

While the merged code is complete, there are still some Android build configuration issues that need to be addressed. The error points to Kotlin version compatibility problems with the D8 dexer.