fix: Exercise dates have been fixed

[shodown96]

What does this PR do?

According to the Issue #87: Exercise Date Discrepancy, There was a discrepancy where the exercise dates created were not corresponding with the created date as expected, and this could cause confusion for others in the future.
It will show Today/Tomorrow/Yesterday or the actual date.

Fixes # (issue)
The dates assigned to the exercises now align with the dates on which they were originally created.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Chore (refactoring code, technical debt, workflow improvements)
• Enhancement (small improvements)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change adds a new database migration
• This change requires a documentation update

How should this be tested?

Log in to your dashboard by clicking and entering your credentials in the email and password fields.
Navigate to the "Courses" feature on your dashboard.
Choose a specific course from your created list.
Select the "Lessons" feature.
Navigate to the exercise section
Observe the exercise date displayed.

Checklist

Required

• Filled out the "How to test" section in this PR
• Self-reviewed my own code
• Commented on my code in hard-to-understand bits
• Ran pnpm build
• Checked for warnings, there are none
• Removed all console.logs
• Merged the latest changes from main onto my branch with git pull origin main
• My changes don't cause any responsiveness issues

Appreciated

• If a UI change was made: Added a screen recording or screenshots to this PR
• Updated the ClassroomIO Docs if changes were necessary

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[github-actions]

Thank you for following the naming conventions for pull request titles! 🙏

[rotimi-best]

@shodown96 Just tested this. Thanks a lot, it works well ☺️😃🚀

[rotimi-best]

LGTM