Cursorless tutorial follow-up work

[pokey]

• [ ] Look into removing highlight when the tutorial prereqs no longer met
• [ ] Make it so that closing the tab doesn't result in a save dialog
• [ ] Point out early in tutorial that you can play around and easily resume the tutorial
• [ ] Change title of tutorial tab to something other than 'Untitled-7'
• [ ] Show pop-up on install prompting them to do the tutorial. Prob should show pop-up even not on first install?
• [ ] Add other buttons like next/prev/list
• [ ] #2563
• [ ] Add note at beginning of docs