feat: make blocsync the default server

[mtwichel]

Status

READY

Description

This pull request updates the ApiClient class in blocsync/lib/src/api_client.dart to improve usability and simplify the initialization process. The most important change is the replacement of the baseUrl parameter with a default string value, along with adjustments to how host, port, and secure are derived.

Updates to ApiClient initialization:

• The baseUrl parameter now defaults to 'https://api.blocsync.dev' instead of requiring a Uri object during initialization. This simplifies the instantiation of ApiClient for common use cases.
• host, port, and secure are now derived by parsing the baseUrl string using Uri.parse(baseUrl). This ensures consistent handling of the base URL and avoids requiring the caller to pass a Uri.
• The port field type has been updated from int to int? to accommodate cases where the port might not be explicitly specified in the URL.

Type of Change

• ✨ New feature (non-breaking change which adds functionality)
• 🛠️ Bug fix (non-breaking change which fixes an issue)
• ❌ Breaking change (fix or feature that would cause existing functionality to change)
• 🧹 Code refactor
• ✅ Build configuration change
• 📝 Documentation
• 🗑️ Chore
• 🧪 Test