Resolves #7682

Proposed Changes

• Show the title from the archive page instead of showing a hardcoded title

Testing Instructions

1. Go to Sensei LMS -> Settings (General) and check which page is selected as the Courses archive page
2. Open that page and make sure there is Course List block in that page
3. Edit the title
4. Now open your course archive pages (siteurl.local/courses-overview)
5. Make sure you see the edited title
6. Try the filters and make sure you still see the same edited title
7. Now remove the Course List block from the archive page. We are doing it so that the forced archive page template takes over
8. Now open the archive page from the frontend again
9. Make sure the title is the hardcoded one this time
10. Try the filters and make sure you see the different hardcoded filters there for different filters instead of the edited one.

Pre-Merge Checklist

• PR title and description contain sufficient detail and accurately describe the changes
• Adheres to coding standards (PHP, JavaScript, CSS, HTML)
• All strings are translatable (without concatenation, handles plurals)
• Follows our naming conventions (P6rkRX-4oA-p2)
• Hooks (p6rkRX-1uS-p2) and functions are documented
• New UIs are responsive and use a mobile-first approach
• Code is tested on the minimum supported PHP and WordPress versions