Display the derived instances while hovering on type constructors and data constructors

## Is your enhancement request related to a problem? Please describe.
No

## Describe the solution you'd like
Display the derived instances while hovering on type constructors and data constructors.

For example, for `data A = A deriving Show; a = A`, it would be great to display it derived the `Show` while hovering over all `A`s

## Describe alternatives you've considered
Not sure if there is a better way to show these instances

## Additional context