feat(website): make canary release page display actual canary version name

[Josh-Cena]

Pre-flight checklist

• I have read the Contributing Guidelines on pull requests.
• If this is a code change: I have written unit tests and/or added dogfooding pages to fully verify the new behavior.
• If this is a new API or substantial change: the PR has an accompanying issue (closes #0000) and the maintainers have approved on my working plan.

Motivation

The canary release page has always been a bit inconvenient to use, because it only displays an example. With this PR, we can try our best to display an actually functional name.

Test Plan

Test links

Deploy preview: https://deploy-preview-7334--docusaurus-2.netlify.app/community/canary/

[netlify]

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[github-actions]

⚡️ Lighthouse report for the deploy preview of this PR

URL	Performance	Accessibility	Best Practices	SEO	PWA	Report
/	🟠 54	🟢 100	🟢 100	🟢 100	🟢 90	Report
/docs/installation	🟠 89	🟢 99	🟢 100	🟢 100	🟢 90	Report

[github-actions]

Size Change: +58 B (0%)

Total Size: 807 kB

Filename	Size	Change
website/build/assets/js/main.********.js	612 kB	+58 B (0%)

ℹ️ View Unchanged

Filename	Size
website/.docusaurus/globalData.json	51.3 kB
website/build/assets/css/styles.********.css	105 kB
website/build/index.html	38.8 kB

_{compressed-size-action}

[slorber]

🤪 that feels a bit convoluted but why not 🤷‍♂️

What I don't like is that it produces a few confusing fouc/shifts on navigating/refresh

(particularly the orange->green admonition flash)

[Josh-Cena]

That's expected, though. I can't see a better way to fix it. Unless you want some cooler animations?

[slorber]

🤷‍♂️ that seems ok

we'll see if anyone complains but it's just our website so not a big deal