Show keyboard shortcuts in Code Action Widget

[justschen]

"Is there a plan to show the keyboard shortcuts as well (similar to the old code action context menu)?

This is helpful when there are different more detailed shortcuts for code actions, for example:

Old:

New:

The 2 shortcuts are not shown in the new version."

Originally posted by @lgrammel in #152913 (comment)

[mjbvz]

To verify:

1. Create a keybinding for a specific kind of refactoring:

{
        "key": "ctrl+shift+e",
        "command": "editor.action.refactor",
        "args": {
            "kind": "refactor.extract",
            "preferred": true,
            "apply": "ifSingle"
        }
    },

2. Open the code action widget so a refactoring of the kind above is visible (refactor.extract for example)
3. Confirm the keybinding shows in the widget next to extract actions