[BUG] Local index default setting is not working

[ansjcy]

What is the bug?

The default settings for exporters were changed in #217, but when we start OpenSearch with query insights and run queries, there's no data exported to local index

How can one reproduce the bug?

• ./gradlew run
• Create a document and do search
• Check local indices, there's no top n queries indices created.

What is the expected behavior?

• By default local index exporter is enabled, after searching there should be top n queries indices created.

What is your host/environment?

Operating system, version.

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Do you have any additional context?

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