[D1] Adding info on wrangler d1 insights

[Oxyjun]

Summary

1. Documenting the full list of available options in a table, as of Wrangler 3.95.0
2. Adding in actual responses from the example d1 insight commands.
3. Adding a note to define/explain queryEfficiency.
4. Updating examples to use --limit rather than the outdated --count.

Screenshots (optional)

Documentation checklist

• The documentation style guide has been adhered to.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• Files which have changed name or location have been allocated redirects.

[cloudflare-workers-and-pages]

Deploying cloudflare-docs with    Cloudflare Pages

Latest commit:	e3d9c93
Status:	✅  Deploy successful!
Preview URL:	https://626d7afd.cloudflare-docs-7ou.pages.dev
Branch Preview URL:	https://jun-d1-insights-updat.cloudflare-docs-7ou.pages.dev

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[github-actions]

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/d1/observability/metrics-analytics/	https://jun-d1-insights-updat.cloudflare-docs-7ou.pages.dev/d1/observability/metrics-analytics/
https://developers.cloudflare.com/d1/wrangler-commands/	https://jun-d1-insights-updat.cloudflare-docs-7ou.pages.dev/d1/wrangler-commands/

[Classicrichblog]

Summary

1. Documenting the full list of available options in a table, as of Wrangler 3.95.0

2. Adding in actual responses from the example d1 insight commands.

3. Adding a note to define/explain queryEfficiency.

4. Updating examples to use --limit rather than the outdated --count.

Screenshots (optional)

Documentation checklist

• The documentation style guide has been adhered to.

• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.

• Files which have changed name or location have been allocated redirects.

[vy-ton]

@rozenmd could you review here too