[UI/UX] Missing hover effect on Resume and Pause buttons

Description: While playing a game on the web app (/play/), I noticed that putting the cursor over the Resume and Pause buttons in the right-hand control panel does not trigger any visual change. Expected Behavior: The buttons should have a CSS :hover state that slightly changes their background color, border, or opacity so users get visual feedback that the element is clickable. Steps to Reproduce: Start a game on checkora.vercel.app/play/ Pause the game. Hover the mouse over the "Resume" or "Pause" buttons. Observe that the button color remains static. Screenshots: https://github.com/user-attachments/assets/9bb66df2-5f43-4998-9ca6-92d4594d942f