docs: update rspress 1.41.0 and enable codeBlocks search

[chenjiahan]

Summary

• Bump Rspress to v1.41.0.
• Enable code blocks search feature.
• Enable lazy compilation (bug has been fixed)

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

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[codspeed-hq]

CodSpeed Performance Report

Merging #9158 will not alter performance

_{Comparing code_blocks_search_0205 (47574ba) with main (3c2ab03)}

Summary

✅ 6 untouched benchmarks