Show resume in the bindings of the hole panel

I don't quite know whether this issue should be here or on `effekt-vscode`, but I'd like to see the type of resume when I'm in a handler:
```scala
try { [1, 2, 3].each }
with emit[Int] { n =>
<> // here, I'd like to also have the "locally bound" `resume` of the correct type, if possible
}
```