Timer added

[Niya2201]

This PR adds a real-time count-up timer to the Typing Speed Test application.

Previously, users could not see how much time had elapsed while typing, making it difficult to track performance accurately. This update introduces a live timer that starts automatically when typing begins, updates every second, stops when results are displayed, and resets on restarting the test.

This improves user experience and enables accurate WPM calculation.

🔗 Related Issue

Closes: #29

🛠 Changes Made

Added timer label to the UI

Implemented real-time timer using after() method in Tkinter

Started timer on first key press

Stopped timer when results are displayed

Reset timer on test restart

Ensured timer does not run multiple times simultaneously

📷 Screenshots (if applicable)

✅ Checklist

I have tested my changes

My code follows project guidelines

I have linked the related issue

[FOSSCLUB-LBSITW]

Hi Niya!
Your pull request shows conflicts on the file typing_speed_test.py. Please ensure that you worked on the latest code.
Kindly resolve the conflicts so I can merge them! :)

[FOSSCLUB-LBSITW]

Hi Niya!
Your pull request still shows some conflicts. Please resolve it so I can merge it! :)

[FOSSCLUB-LBSITW]

Hi Niya!
Please tell me know if you are still working on this issue.
If not, I'll close it so that other contributors can pick up on it.