Update v1.6.19, v1.6.20 and v1.6.21

V1.6.21 (29.05.2025)

• Fix granting an animal spreader if the game hadn’t already offered one when completing the new special event.
• Fix “Tuber farm” project popup being shown when hovering the leader skill to build the “Robotic Headquarters”.

V1.6.20 (26.05.2025)

• Fixed that some leader skills that grant free projects would still not be free, despite a previous fix.

V1.6.19 (23.05.2025) (linux only)

• Fixed blocking bug on startup for new players (similar bug than in patch 1.6.18, with a different cause).