fix: Issues with logging

[RisingOrange]

This PR fixes two issues that are related to logging.

Proposed changes

• Currently we are not adding log records to the DatadogLogHandler.buffer (and not sending them to Datadog) if the send_addon_logs_to_datadog feature flag is not set. The problem is that even if the feature flag is activated, it is fetched in the background and the log messages from the startup would get discarded. The PR changes this. Now log records are always added to the buffer and the feature flag only controls if they are sent to Datadog.
• Fix RuntimeError on logging.shutdown involving Anki's ErrorHandler and sentry

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 87.68%. Comparing base (cfedc8e) to head (2fa803e).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #961 +/- ## ======================================= Coverage 87.67% 87.68% ======================================= Files 66 66 Lines 6611 6616 +5 ======================================= + Hits 5796 5801 +5 Misses 815 815 ```

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