vim: Add scroll keybindings for the OutlinePanel (#42438)
Closes #ISSUE
```json
{
"context": "OutlinePanel && not_editing",
"bindings": {
"enter": "editor::ToggleFocus",
"/": "menu::Cancel",
"ctrl-u": "outline_panel::ScrollUp",
"ctrl-d": "outline_panel::ScrollDown",
"z t": "outline_panel::ScrollCursorTop",
"z z": "outline_panel::ScrollCursorCenter",
"z b": "outline_panel::ScrollCursorBottom"
}
},
{
"context": "OutlinePanel && editing",
"bindings": {
"enter": "menu::Cancel"
}
},
```
Release Notes:
- Added scroll keybindings for the OutlinePanel
---------
Co-authored-by: Ben Kunkle <ben@zed.dev>
79a8985a8e