Summary

1. Moves the Splunk page in the sidebar under "Data ingestion" to "Data Visualization"

2. Adds meta data. You can now do this in DWH:

SELECT    countIf(mapContainsValue(event_params, 'core')) AS core_views,    countIf(mapContainsValue(event_params, 'partner')) AS partner_views,    countIf(mapContainsValue(event_params, 'community')) AS community_viewsFROM dbt_marts_google_analytics.events_dailyWHERE event_date > today() - INTERVAL 3 DAY

Checklist

• Delete items not relevant to your PR
• URL changes should add a redirect to the old URL viahttps://github.com/ClickHouse/clickhouse-docs/blob/main/docusaurus.config.js
• If adding a new integration page, also add an entry to the integrations list here:https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/integrations/index.mdx