style: corregides les capçaleres de game/entities

CLAUDE.md

@@ -450,7 +450,7 @@ Game code
 
 **Variables:**
 - `snake_case` for member variables with `_` suffix: `x_`, `y_`, `sprite_`
-- `UPPER_CASE` for constants: `BLOCK`, `MAX_VY_`, `WIDTH_`
+- `UPPER_CASE` for constants: `BLOCK`, `MAX_VY`, `WIDTH`
 - Private members: `private_member_`
 
 **Structs for Data:**