- Implemented receipt file upload in ImportRepository with multipart request handling.
- Created ParsedReceiptItem model for parsed receipt data.
- Added ReceiptImportTab for user interface to upload and review receipts.
- Updated ImportScreen to include the new ReceiptImportTab alongside RecipeImportTab.
- Introduced flutter_bootstrap.js and index.html for web app initialization.
- Added wimp.wasm and flutter.js for enhanced web performance and capabilities.
- Deleted `next_steps_flutter.md` and `teknisk_beskrivning_flutter.md` files as they were outdated.
- Added new `next_steps_flutter.md` and `teknisk_beskrivning_flutter.md` files with updated migration plans and technical descriptions for the Flutter frontend.
- Implemented `profile_repository.dart` to handle profile data retrieval and updates using the API.
Co-authored-by: Copilot <copilot@github.com>