Use a light mode theme for light mode

[Blargian]

Summary

We were using a dark mode theme for light mode prism highlighting for some sad reason.

YAML syntax highlighting was looking pretty sad:

BEFORE:

AFTER:

Checklist

• Delete items not relevant to your PR
• URL changes should add a redirect to the old URL via https://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

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Name	Status	Preview	Comments	Updated (UTC)
clickhouse-docs	🛑 Canceled (Inspect)		💬 Add feedback	May 23, 2025 0:22am
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clickhouse-docs-zh	❌ Failed (Inspect)			May 23, 2025 0:22am

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
clickhouse-docs-ru	⬜️ Ignored (Inspect)			May 23, 2025 0:22am