Fix: Prevent double title issue in SEO metadata by updating seo.html

[alouiadel]

This is a bug fix.

Summary

This pull request addresses the issue of duplicated titles in the SEO metadata. The fix involves overriding the seo.html file and updating the logic to ensure the page title doesn't include the site title twice. The change ensures that the title displayed in the browser tab and metadata is clean and correctly formatted.

Changes Include:

• Created a custom _includes/seo.html file.
• Updated the logic in seo.html to prevent the page title from containing the site title twice.

Testing:

• Verified that the title is no longer duplicated in the browser tab and in the generated HTML meta tags.

[iBug]

I kind of consider it a feature that the page title uses site.title as a placeholder. And to keep in line with other pages where the title always ends in - {{ site.title }}, I'm not sure how a single page titled only {{ site.title }} would look better.

[alouiadel]

The names of other pages will still display alongside the site title, like 'Portfolio | Site Title' or 'Posts | Site Title.' This fix only addresses the issue where 'Site Title | Site Title' appears as a duplicate in the browser tab

[alouiadel]

Example after fixing it in my blog :

its only site title Adel Aloui Portfolio/Blog , instead of Adel Aloui Portfolio/Blog | Adel Aloui Portfolio/Blog

but here site title Adel Aloui Portfolio/Blog , gets added again

[iBug]

OK, not as bad as I had imagined.