Added a GUI(Graphical User Interface)

[shrutidev18]

Features:

• Implemented a Tkinter-based graphical user interface to enhance user interaction and gameplay experience.
• Added input field for specifying the number of rounds, including validation to ensure positive numeric input.
• Displayed real-time updates of current scores (wins, losses, ties) after each round.
• Presented the final result clearly, showing whether the user or computer is the overall winner.
• Integrated a language selection dropdown, enabling multilingual support with translations for English, Hindi, Spanish, French, Tamil, and Bengali.

Benefits:

• Provides an intuitive and visually appealing way to play Rock Paper Scissors.
• Improves usability through clear prompts, score tracking, and error handling.
• Expands accessibility by supporting multiple languages.

fixes #9