Should be able to insert image to the beginning of content

[caasi]

Current code will fallback to this.quill.getLength() when you move your cursor to the beginning of content.

insert(dataUrl) {
  const index =
    (this.quill.getSelection() || {}).index || this.quill.getLength();
  this.quill.insertEmbed(index, 'image', dataUrl, 'user');
}

Check the result of getSelection may be a better solution.

insert(dataUrl) {
  const selection = this.quill.getSelection();
  const index = selection
    ? selection.index
    : this.quill.getLength();
  this.quill.insertEmbed(index, 'image', dataUrl, 'user');
}

[singleseeker]

@caasi Good job, You should give a PR to this project.