Build 25366008

- Tutorial: the "Outdoor games" zone was grayed out, which made the "Paint a zone" step impossible. Fixed.
- Tutorial: during "Drop the tool", you could still paint zones anywhere on the map, and the "Remove the zone" step then never completed. Fixed, and that step now only looks at the L shape.
- Camera: mouse or keyboard, whichever you prefer. The camera panel now has three lines instead of six, and either input counts.
- The game now starts in fullscreen by default. You can still switch to windowed mode in Options.
- Options: the "Off" label next to a checkbox is now dimmed, so it reads as the current state, not as an instruction.
- A few English texts corrected in the tutorial letters.