Fix documentation and remove friend keyword

Remove friend keyword and put variables in public instead
Fix documentation where the name of the component is not specified

Co-Authored-By: Benjamin HENRY <44569175+EternalRat@users.noreply.github.com>

sources/Component/Health/HealthComponent.cpp

@@ -36,8 +36,8 @@ namespace BBM
 			this->_healthPoint -= damage;
 	}
 
-	void HealthComponent::die(void)
+	unsigned int HealthComponent::getHealthPoint(void) const
 	{
-		this->_entity.setDisable(true);
+		return (this->_healthPoint);
 	}
 }