Changed
- When `min` or `max` is used with a `datatype: date` or `datatype:
datetime`, the minimum and/or maximum are now indicated in the HTML
so that browser widgets know what they are.
- When the browser uses dark mode, the red asterisk is less bright.
- When `grid` is used, items are aligned to the bottom of the row.
Fixed
- Bug in `/api/playground_install`.
- Fixed formatting in `grid` mode when label is empty.
- When browsing other users' playgrounds, the Download and GitHub
buttons in the Packages folder did not work as intended.