🎨 Palette: Replace hardcoded spaces with \033[K to prevent terminal artifacts

[EiJackGH]

💡 What: Replaced hardcoded padding spaces with the ANSI escape sequence \033[K (Erase in Line) immediately after \r (Carriage Return) in the dynamic terminal update loops within src/main.cpp.

🎯 Why: In dynamic terminal loops, writing shorter lines over longer lines can leave trailing text artifacts. Hardcoding space padding is a fragile guessing game. Using the standard \033[K escape sequence cleanly and robustly clears the line from the cursor to the end, resulting in a significantly more polished and artifact-free user experience. This prevents visual glitches as scores or states change rapidly.

📸 Before/After: The game score and countdown displays will no longer occasionally flash trailing spaces or characters if the line length fluctuates.

♿ Accessibility: This is a visual polish and developer experience improvement, ensuring clean rendering for users playing the game or running the application via CLI.

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PR created automatically by Jules for task 1591788124006896186 started by @EiJackGH

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