(feat) Improved UI of play Typing Speed Test

[BayajidAlam]

I have update the UI made it more user friendly

issue #1552

First thing, PLEASE READ THIS: ReactPlay Code Review Checklist

Description

• Updated the UI, that gives a user better user experience
• Showed green when a correct character is typed and red for wrong one
• Added max WPM(word per minute) in summary
• Updated the modal
• Updated README.md

Fixes #1552

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce.

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

Screenshots or example output

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