update interface of the home screen

[ThreeWater1037]

👉 Checklist

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• I have reviewed my submission thoroughly.
• I have tested my code (if submission is related to coding) and run the game before pushing (to make sure the project compile).
• I have run the JUnit tests (if submission is related to coding).
• I have read the Code of Conduct and Contribution Guidelines.

✍ Description of the Pull Request

Please concisely describe the changes you have made.

• Hello, I have made some preliminary modifications to the main menu style.
  I replaced the "Start Game" and "Quit Game" buttons with rounded buttons and adjusted their colors to better match the theme.
  Additionally, I added a background image—the one featuring the cosmos—and set it to scroll horizontally.

🔗 Issue link

Issue reference number and link goes here e.g. 'Fixes/Closes #77 '.

• This Pull Request fixes the issue : 'Closes [Feature]: Update interface of the home screen #77 '
• This Pull Request does not fix an issue.

Thanks for taking the time to fill out this Pull Request! ❤️ Thanks for contributing to this project 🦖

[github-actions]

👋 Hello @ThreeWater1037, thank you for submitting in Dinosaur Exploder 🦖 PR! To allow your work to be integrated as seamlessly as possible, we advise you to:

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• 💡 Reduce changes to the absolute minimum required for your bug fix or feature addition. "It is not daily increase but daily decrease, hack away the unessential. The closer to the source, the less wastage there is." — Bruce Lee

[jvondermarck]

Thank you so much for your contribution !! Sorry for the delay !

[jvondermarck]

Can you just resolve the conflict please ? @ThreeWater1037

[ThreeWater1037]

Hello, I have resolved the conflict.