Filter out node logs below Info level

[erdemyerebasmaz]

This PR applies filter level customization changes on logger from Breez SDK PR:

• Apply env_logger module filters on Dart & UniFFI binding loggers breez-sdk-greenlight#874

which addresses the issue raised on:

• Reduce default log level from CONFIG to INFO #817

where we were receiving unwanted SDK module logs as the filtering mechanism previously did not apply to them on binding loggers.

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Reducing default log level from CONFIG to INFO had unwanted side effects such as missing out on node logs as they were all emitted on Debug level on the SDK, corresponds to CONFIG level on app layer, which got addressed by increasing their level to Info but this is a temporary fix that did not address the underlying issue.

The logs that are coming from modules were still not filtered and we were missing out on helpful logs on Debug level across the SDK, notification extensions and app. Also, since notification extensions & SDK uses the same log stream, there was no way to differentiate between their filter levels. Which are all addressed by this & SDK PR.

Currently, we don't miss information from Debug level logs & unwanted SDK module logs are filtered out.

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Changelist:

• Filter out node logs below Debug level on extensions 872c81d
• Filter out node logs below Debug level on app bb979ca
  • Increase default log level back to CONFIG from INFO