Log errors from PlatformDispatcher

[maBarabas]

📜 Description

This is similar to how the FlutterErrorIntegration prints caught errors.

💡 Motivation and Context

Fixes #1255

💚 How did you test it?

See demo app at linked issue. After this change, enabling debug on Sentry options makes an error show up in the logs for each error reported by the PlatformDispatcher.

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• No new PII added or SDK only sends newly added PII if sendDefaultPii is enabled
• I updated the docs if needed
• All tests passing
• No breaking changes

🔮 Next steps

[marandaneto]

Thanks @maBarabas

[codecov]

Codecov Report

Base: 90.03% // Head: 90.65% // Increases project coverage by +0.61% 🎉

Coverage data is based on head (0d9dba7) compared to base (8fa3934).
Patch coverage: 100.00% of modified lines in pull request are covered.

❗ Current head 0d9dba7 differs from pull request most recent head e6e09e8. Consider uploading reports for the commit e6e09e8 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1257      +/-   ##
==========================================
+ Coverage   90.03%   90.65%   +0.61%     
==========================================
  Files         110      144      +34     
  Lines        3483     4707    +1224     
==========================================
+ Hits         3136     4267    +1131     
- Misses        347      440      +93     

Impacted Files	Coverage Δ
...ter/lib/src/integrations/on_error_integration.dart	93.93% <100.00%> (ø)
...ib/src/integrations/flutter_error_integration.dart	100.00% <0.00%> (ø)
...src/integrations/native_app_start_integration.dart	77.77% <0.00%> (ø)
...nt_processor/flutter_enricher_event_processor.dart	92.85% <0.00%> (ø)
...nt_processor/native_app_start_event_processor.dart	93.33% <0.00%> (ø)
flutter/lib/src/sentry_flutter_options.dart	73.33% <0.00%> (ø)
...er_interaction/sentry_user_interaction_widget.dart	96.46% <0.00%> (ø)
flutter/lib/src/sentry_native.dart	100.00% <0.00%> (ø)
flutter/lib/src/sentry_asset_bundle.dart	93.02% <0.00%> (ø)
.../src/integrations/load_image_list_integration.dart	96.00% <0.00%> (ø)
... and 25 more

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[maBarabas]

Should we log at debug level even when handled is true? Right now even handled errors are logged as a sentry error.

[marandaneto]

Should we log at debug level even when handled is true? Right now even handled errors are logged as a sentry error.

That's just for console logging, it is fine as it is, and we can change it if necessary.