Fix: Add unique accessible names to post-date and Comments CTA links

[ikamal7]

Description

Resolves ambiguous link text accessibility issues where multiple posts share the same accessible name:

1. Post date links — Multiple posts published on the same day announced identical names to screen readers. Added a filter that appends the post title to an on the linked date.

2. Comments CTA links — The "Join the conversation" / "Be the first to comment" links repeated the same text across posts. The block binding callback now includes the post title in an .

Both fixes follow the pattern: , making each link uniquely identifiable.

Fixes #47

[github-actions]

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Co-authored-by: ikamal7 <ikamal@git.wordpress.org>
Co-authored-by: MaggieCabrera <onemaggie@git.wordpress.org>
Co-authored-by: carolinan <poena@git.wordpress.org>
Co-authored-by: henriqueiamarino <iamarinoh@git.wordpress.org>

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[github-actions]

👋 Thanks for your first pull request, @ikamal7! We'll take a look soon.

[carolinan]

I'm not a native English speaker, but I don't think adding a colon between the data is helpful.
Example:
2016-04-15: Hello world
Join the conversation: Hello world

I would personally prefer if the link on the date was just removed. I don't think each post needs four to five links:
featured image
post title
date
comment link 1
comment link 2

Please allow more contributors to chime in before making more changes.

[MaggieCabrera]

I don't think a theme should take into its hands this kind of DOM manipulation. Something like this should be done in core if it was really needed, else every theme would need this code.

[carolinan]

I can agree, on the other hand, users can solve this without a change in Gutenberg, by removing the link from the date or by selecting a format that is unique, not only the year, month and day.

[MaggieCabrera]

I would personally prefer if the link on the date was just removed. I don't think each post needs four to five links: featured image post title date comment link 1 comment link 2

Agree, I think that's what the PR should be

[henriqueiamarino]

I don't mind removing the date links—fine by me from the design side.