Show user courses for sensei_user_courses shortcode in different languages

[merkushin]

Resolves #7492 (review)

Proposed Changes

• Show user courses for sensei_user_courses shortcode in different languages.

Known Issues

• This PR doesn't affect Course List block. Can't find a solution for it at the moment.
• Now we actually enrol a user into each translated course. The drawback of this solution is that the user is not automatically enrolled in a new translation. Could be addressed later as part of translation creation. (If it is okay, I'll create a separate issue.)

Testing Instructions

1. On the My Courses page replace Course List block with the [sensei_user_courses] shortcode.
2. Translate My Courses page.
3. Follow our instructions to create one or more courses and their translations.
4. Go to the frontend of the original language and take one or more courses.
5. Switch to another language on the frontend.
6. Check that on My Courses page you see all the courses you took and their current (shared) status. (Notice: you won't see a course if it doesn't have a translation.)

New/Updated Hooks

• sensei_learner_enrolled_courses_query_by_progress_status_course_ids - Filters the course IDs for a learner's enrolled courses query by progress status.
• sensei_settings_my_course_page_id - Filters the My Courses page ID.

Removed Hooks (Not released yet)

• sensei_course_manual_enrolment_enroll_learner_course_id
• sensei_course_manual_enrolment_withdraw_learner_course_id

Pre-Merge Checklist

• PR title and description contain sufficient detail and accurately describe the changes
• Acceptance criteria is met
• Decisions are publicly documented
• 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
• New UIs match the designs
• Different user privileges (admin, teacher, subscriber) are tested as appropriate
• Legacy courses (course without blocks) are tested
• Code is tested on the minimum supported PHP and WordPress versions
• User interface changes have been tested on the latest versions of Chrome, Firefox and Safari
• "Needs Documentation" label is added if this change requires updates to documentation
• Known issues are created as new GitHub issues

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[Imran92]

Now I am seeing translated Courses in My Courses page when I switch language! 🙌 But After I completed a translated Course, I didn't see it in the completed list

Screen.Recording.2024-04-09.at.3.11.24.AM.mov

[merkushin]

Thanks @Imran92.

Fixed it here: c0a5fc9

While preparing the PR, moved the filter to a later point and checked only Active tab. Sorry.

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[Imran92]

LGTM! 👍

The base branch was changed.

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