Clean logger subscriptions upon reconfiguration #6
Description
Describe the bug
If a logger is reconfigured with configureLogger, the old stream still sticks around. It would be better to clean up the old subscription (close it) so that we don't get duplicates every time its reconfigured.
To Reproduce
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Expected behavior
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Actual behavior
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Additional: Dart SDK info
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Additional: pubspec.yaml
Additional: Context
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