feat-#12: Added Statistics Section on home page

[Ashu0216]

Description

Added a statistics page which shows the number od notes , students and subjects that the platform has.
While the data is being from the database , a loader will be shown
Added the menu option in navbar to access the statistics page
The page is completely responsive.

Resolves: [#12 ]

Checklist

Before submitting this pull request, kindly verify that the ensuing checkpoints have been reached.

• Have you adhered to the repository's defined coding convention rules?
• Have you sent a message along with the result or response?
• Have you used the try-catch technique?

Screenshots

Additional Notes/Comments

This is a great feature to showcase the use of 'ExamTime' project by students. I am open to any suggestion or changes.

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I certify that I have carried out the relevant checks and provided the requisite screenshot for validation by submitting this pull request.
I appreciate your contribution.

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[github-actions]

Great job, @Ashu0216! 🎉 Thank you for submitting your pull request. Your contribution is valuable and we appreciate your efforts to improve our project.

We will promptly review your changes and offer feedback. Keep up the excellent work! Kindly remember to check our contributing guidelines

[Ashu0216]

Hi @hereisSwapnil , kindly review the pull request and let me know if there any suggestions or changes.
Really enjoyed working on the issue😊.

[hereisSwapnil]

@Ashu0216 Please resolve conflicts
and also the page look kind of empty, so what do you suggest further?

[Ashu0216]

Hi @hereisSwapnil , I have resolved the conflicts.
I was busy in my exams, Thank you for your patience.
Can you please review and finish the pull request.

[Ashu0216]

@hereisSwapnil Please assign the same level (level 2) on the PR as granted on the issue #12 . Thank you

[Ashu0216]

Hi @hereisSwapnil , can you please review and approve the PR.

[Ashu0216]

@hereisSwapnil pls review the PR