Multi cursor support

[kassu11]

I noticed that ctrl+shift+o breaks if you have multiple cursors. Here is a quick example fix to add multi-cursor support.

const swapCursor = () => {
  try {
    const editor = vscode.window.activeTextEditor;
    if (editor) {
      editor.selections = editor.selections.map(selection => {
        if (!selection.isEmpty) {
          return new vscode.Selection(
            selection.active,
            selection.anchor
          );
        }

        return selection;
      });
    }
  } catch (err) {
    vscode.window.showErrorMessage(
      "An error occurred during command execution. Please check the console for details."
    );
  }
};

[hellokidder]

ok! thank you && I have fixed it in V0.0.4