Remove mobile screenshot from README

Removed mobile screenshot from README.

Author: louzoshi

README.md

@@ -25,8 +25,6 @@ Design minimalista com tema claro/escuro, animações suaves e layout totalmente
 
 ### Responsivo
 
-<img src="docs/screenshots/mobile-dark.png" alt="Mobile" width="240" />
-
 </div>
 
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