Fix R2 metrics markdown tables

[leno23]

Summary

• remove inline HTML div wrappers from R2 metrics markdown table headers
• let Prettier normalize the affected MDX table formatting

Closes #31310.

Verification

• git diff --check
• COREPACK_ENABLE_AUTO_PIN=0 pnpm exec prettier --check src/content/docs/r2/platform/metrics-analytics.mdx
• custom Node assertion: no <div style=...> table headers remain in the R2 metrics page
• COREPACK_ENABLE_AUTO_PIN=0 pnpm exec astro check (0 errors; existing hints only)

[cloudflare-docs-bot]

Review

⚠️ 2 warnings found in commit af50cbb.

Warnings (2)

File	Issue
r2/platform/metrics-analytics.mdx line 39	Internal links must be root-relative — Table cell uses [jurisdiction](https://developers.cloudflare.com/r2/reference/data-location/#jurisdictional-restrictions) Fix: Change the link to a root-relative path: /r2/reference/data-location/#jurisdictional-restrictions
r2/platform/metrics-analytics.mdx line 39	Internal links need a trailing slash — Internal link path r2/reference/data-location has no trailing slash Fix: Add a trailing slash before the fragment: /r2/reference/data-location/#jurisdictional-restrictions

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