Is your feature request related to a problem? Please describe.

I want to be able to set the markdown widget in markdown mode by default and keep rich text as optional.

Describe the solution you'd like

a solution could be when defining modes for the markdown widget on config.yml to honor the array order:
(e.g. modes: ["raw", "rich_text"], should set markdown by default`)

Additional context

default:

with modes: ["raw", "rich_text"]: