Keep a big app from pushing others away

Some apps (Xcode, some email clients) have a large minimum size. JimiOS never moves your other windows off the workspace for them; the big window goes to the overflow row or the next workspace instead.

1. Give the big app its own workspace: focus it and press ⌥⇧4 (or any free workspace).
2. Or keep it on screen and let a smaller window use the overflow row. Show the row with ⌃⌥↓ when you need it.
3. Or float the big app with ⌥⇧Space and size it yourself.
4. To float that app every time, add its bundle ID to float_apps. To find the bundle ID, run osascript -e 'id of app "Xcode"' in Terminal.