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## What is this PR for? Worksheet hovering is a useful feature provided by `metals` to see not just the end result, but also the entire output of a function call, as can be seen here for example: https://youtu.be/Jv9B1crzpWM?t=16m20s Having a default key assigned not only makes it more convenient, but also increases discoverability. (I was also contemplating `<leader>mK` as the mapping to be in line with `K` for regular hover, but I wasn't convinced that the consistency is worth the extra keypress.) ## Checklist - [x] I've read the [CONTRIBUTING](https://github.com/LazyVim/LazyVim/blob/main/CONTRIBUTING.md) guidelines.