VscodeTree silently kills onKeyDown events for 'Escape' key

[colmmurphyxyz]

Referencing the code snippets from vscode-tree.ts

const listenedKeys: ListenedKey[] = [
  ' ',
  'ArrowDown',
  'ArrowUp',
  'ArrowLeft',
  'ArrowRight',
  'Enter',
  'Escape',
  'Shift',
];

// ...

  private _handleComponentKeyDown = (ev: KeyboardEvent) => {
    const key = ev.key as ListenedKey;

    if (listenedKeys.includes(key)) {
      ev.stopPropagation();
      ev.preventDefault();
    }

    switch (key) {
        // NB: no handler for key === 'Escape'
        // ...
    }
}

any keyDown/keyPress events on a VscodeTree are not allowed to bubble up outside the tree, but the component itself does nothing with these events. Should 'Escaped' be removed from listenedKeys?

Happy to open a PR for this if needed. TIA!