The `insertContentAt` will insert a string of html or a node at a given position or range. If a range is given, the new content will replace the content in the given range with the new content.
The position or range the content will be inserted in.
`value: Content`
The content to be inserted. Can be a string of HTML or a node.
`options: Record<string, any>`
* updateSelection: controls if the selection should be moved to the newly inserted content.
* parseOptions: Passed content is parsed by ProseMirror. To hook into the parsing, you can pass `parseOptions` which are then handled by [ProseMirror](https://prosemirror.net/docs/ref/#model.ParseOptions).