fix: Add accessible name for the hash-link

[zmrhaljiri]

Pre-flight checklist

• [x] 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

An accessibility improvement - anchor elements must have an accessible name - a programmatically determinable name that comes either from the text content inside, from aria-label, or aria-labelledby.

There is no reliable way to hide the textual contents of pseudoelements from screen readers, would be better to implement the link text as <span aria-hidden="true">&#35;</span> but not sure if that would be wanted.

Test Plan

Before - the accessible name of the link is not meaningful:

After - the accessible name of the link is meaningful and unique:

Test links

Deploy preview: https://deploy-preview-8562--docusaurus-2.netlify.app/docs/installation/#requirements

Related issues/PRs

https://github.com/facebook/docusaurus/issues/8336

[netlify[bot]]

✅ [V2]

Built without sensitive environment variables

Name	Link
🔨 Latest commit	55d0f50dbbfd8d73842fc6ea33b11ec853a8851b
🔍 Latest deploy log	https://app.netlify.com/sites/docusaurus-2/deploys/63cb068ebaa59c0008c1232f
😎 Deploy Preview	https://deploy-preview-8562--docusaurus-2.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.

[github-actions[bot]]

⚡️ Lighthouse report for the deploy preview of this PR

URL	Performance	Accessibility	Best Practices	SEO	PWA	Report
/	🟠 84	🟢 97	🟢 92	🟢 100	🟢 90	Report
/docs/installation	🟠 79	🟢 100	🟢 100	🟢 100	🟢 90	Report

[zmrhaljiri]

Did my best to update all the locales

I can confirm the Czech locale is fine :)

[Josh-Cena]

@slorber Looks like https://github.com/facebook/docusaurus/pull/8562#discussion_r1083062791 is missed. I won't be able to get to my computer until a couple of hours later, so it would be great if you can fix that earlier in case I forget.

[slorber]

@slorber Looks like #8562 (comment) is missed. I won't be able to get to my computer until a couple of hours later, so it would be great if you can fix that earlier in case I forget.

What do you mean by it's missed?

I'd prefer if you fix it because it's hard for me to figure out what is the right final solution 😅

[Josh-Cena]

Oops, I didn't see the suggestion was already applied.