Mail preview pane in the Templates folder doesn't render markdown mails correctly
This is an issue related to (but a bit more minor than) #2268 (closed) and #2269 (closed), but... in Evolution 3.46.4, if you save a markdown-formatted email as a template, whether as pure "Markdown" or "Markdown as HTML", such as these contents:
Hello,
See this [nice website](https://gnome.org)!
Lorem ipsum dolor sit amet.
* Blah
* Blah
* Blah
Thanks, \
Bob
...when you go into the Templates folder and single-click the email to select it and view it in the email preview pane (not double-clicking it to open in a composer), the email will be rendered as plain text with all the linebreaks stripped out, instead of being rendered as either plain markdown with the linebreaks respected, or rendered as HTML-live-rendered markdown.