[LH3715] Windows V3: Scratchpad plain text integration.

Hi,

The current beta scratchpad views RTF files only, while the Mac version allows plain text (and therefore markdown) files as well. I can fully understand that a feature like this may not make the first release, or in the first few point releases which presumably will be focused on polishing existing features. That’s all fine…

But could I make a plea for plain text in the Scratchpad to be included early on the map afterwards? Not having it makes working cross-platform a little bit harder than it needs to be.

Thanks!