Render Markdown.

[RokeJulianLockhart]

Checklist

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

Feature description

Ideally, choose a Markdown processor which supports basic HTML tags like <blockQuote> and <details>.

Why do you want this feature?

Because I want plain-text formatting to be available to the masses, and more importantly, me.

Additional information

Replaces https://github.com/FossifyOrg/General-Discussion/issues/126#issue-2144777286 and https://github.com/FossifyOrg/Notes/issues/2#issue-2036044559 per @Aga-C's request at https://github.com/FossifyOrg/General-Discussion/issues/126#issuecomment-1954617215.