* Update a few components to use smart pointers for memory management
* 'final' keyword added to classes
* removed duplicate 'const'
* removed unused code
* Updated render component to store effects directly in a vector
* Use move instead of copy
* make pointers const
* attribute tags
* nitpicking
* delete default effect constructor
* Added a vector size check to the RemoveEffect() function
* use empty() instead of size()
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