* fix: improve error handling and messaging in DFX Buy and OpenCryptoPay services
* fix: adjust error handling in DFX Buy provider by updating `_getErrorMessage` function parameters and removing unused imports
* feat: Add Open CryptoPay for sending
* bug: Fix sending Open CryptoPay for eth
* feat: add transaction dismissal
* style: remove print statements from OCP
* feat: add support for Monero over OCP
* bug: Hide "Add to Address Book" on OCP transactions
* style: revert code style in send_view_model.dart
* style: revert code style in send_view_model.dart
* feat: set failure state if it fails to create an OCP transaction
* Update lib/view_model/send/send_view_model.dart
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Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>
