Expand Navigation docs

[amirhhashemi]

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Description(required)

This PR improves the Navigation docs by:

1. Adding information about other methods of navigation like useNavigate and redirect
2. Fixing ambiguity with the example: The examples used App as the component name, which might not be obvious that it's used in a Route. They also were more complex than they needed to.
3. Adding more examples and information in general. Like adding an example of relative paths, making it clear that native anchor tags triggers a client-side navigation (unlike other frameworks), etc.

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