chore: sync content to repo (#9707)

Co-authored-by: kamranahmedse <4921183+kamranahmedse@users.noreply.github.com>

src/data/roadmaps/rust/content/box@WjpkWH7f38y-bHUJ6ruGG.md

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+# Box
+
+A `Box` in Rust is a smart pointer that allocates memory on the heap. It's primarily used to store data that has a size that's not known at compile time, or when you want to transfer ownership of data without copying it. Think of it as a way to put data on the heap and access it through a pointer, ensuring that the data is automatically deallocated when the `Box` goes out of scope.
+
+Visit the following resources to learn more:
+
+- [@official@Using Box<T> to Point to Data on the Heap](https://doc.rust-lang.org/book/ch15-01-box.html)
+- [@official@Smart Pointers](https://doc.rust-lang.org/book/ch15-00-smart-pointers.html#smart-pointers)
+- [@video@The Box Smart Pointer in Rust](https://www.youtube.com/watch?v=m76sRj2VgGo)

src/data/roadmaps/rust/content/rc@U9Bd-GO0QwYVLvESR4PTb.md

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 Visit the following resources to learn more:
 
-- [@official@Rc<T> in std::rc](https://doc.rust-lang.org/std/rc/struct.Rc.html)
 - [@official@rct - The Reference Counted Smart Pointer](https://doc.rust-lang.org/book/ch15-04-rc.html#rct-the-reference-counted-smart-pointer)