This patch largely consists of bugfixes ahead of Steam's fest, but we did add a screenshot button to the highscore screen shown at the end of challenges

- Save slots are now sorted by most recently updated first

- We fixed a few bugs with the continue button that could occur after deleting slots

- We fixed a bug that would open the link discord screen when  trying to start the Desert Dew challenge

- The button alignment is fixed in the confirm dialogue

- We fixed a bug where bridges and tunnels wouldn't destroy fields or other ornaments

- We fixed a bug where track draws wouldn't reliably destroy ornaments like fields

- We removed a special case that would stop you from collapsing a service in the trains window when there is only one left

- Adding to a new route, or jumping to the route from a train window, now scrolls it into view