How to remove empty paragraph befofe inserted content?

[vaban-ru]

Hello, when I insert an element, an empty paragraph is inserted in front of it, how do I fix this?
To add content I am using insertContent() function.

addCommands() {
    return {
      insertWidget:
        () =>
        ({ commands }) => {
          commands.insertContent(
            banner
          );
          return true;
        },
  },