fix: force clear screen

[thomas-mauran]

Force the clear of the screen before showing the UI

Description

Fixes #211

How Has This Been Tested?

Hello @kikoreis I wasn't able to reproduce this even using multipass, I did a blind patch and am wondering if you can try compiling chess-tui on that branch so we can see if this fixes the issue !

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my 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

[thomas-mauran]

Hello @kikoreis I added the screen clearing when leaving the game, let me know if this works after trying it out !