Auto saving of parts I'm writing

### Is Your Feature Request Related to a Problem? Just now, I was writing a post, and I was almost done. But I wanted to cross-reference a few things, so I searched in a Discord discussion, and checked one of my Firefox tabs. Then I came back to Thunder to finish... But the app went back to the home screen. I guess I ran out of RAM. I lost all the text I'd written, and now I need to start over. ### Feature Description I wish the app had some sort of auto-save feature that would bring me back to the form I was writing in and restore what I was writing if the app gets closed for any reason. ### Alternative Solutions If there's a way to make the app "sticky" so that the OS can't kill it anytime the user is writing a post/comment, I guess that might work too, but that sounds a little extreme to me. ### Additional Context My phone is a Samsung Galaxy S22+.