correctly recognize MIME type text/org-mode #76

Checklist

• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the request will be dismissed otherwise.
• This issue contains only one feature request.
• I have read and understood the contribution guidelines.

Feature description

emacs org-mode is MIME type text/org-mode. It's also just plaintext.

Recognize somefile.org as plaintext and open it.

Bonus points for parsing it for syntax highlighting. Parsers are available for numerous languages.

Why do you want this feature?

An application claiming to read and write plaintext should be able to read and write plaintext.

org (typst, tex, adoc, rst, and others) is just plaintext. Leave the fancy processing to other applications, but at least open the files for display and editing.

Additional information

No response