Nested paragraph recursion not possible

Problem/Motivation

If you have nested paragraphs it is not possible to use them with this module. Here is an example of my template:

page:
  landing-page-converter:
    label: Landing page converter
    default: false
    fields:
      field_paragraphs:
        - type: grid
          field_heading: "This is perfect for:"
          field_paragraphs:
            - type: card
              field_heading: "Persona One"
            - type: card
              field_heading: "Persona Two"
            - type: card
              field_heading: "Persona Three"
          field_columns: 3

Steps to reproduce

1. Create a paragraph type called 'card' with a 'field_heading' text field.
2. Create a paragraph type called 'grid' with a 'field_paragraphs' reference field and a 'field_columns' number field.
3. Create a content type called 'page' with a 'field_paragraphs' reference field.
4. Paste the above example or other similar example with nested paragraphs and observe the cards don't get created when using this module normally.

Proposed resolution

Implement a recursive strategy when creating paragraphs in instances where nesting occurs.

Remaining tasks

OP to create a branch and MR with proposed resolution.

User interface changes

N/A

API changes

N/A

Data model changes

Will now use recursion to process paragraphs.