Medieval Oak, Stalactite Caves, Ancient Athens, Desert Oasis and Fortress fixes in 1.20.1

[MotionlessTrain]

Closes #
Closes #

Changes proposed in this pull request

• Medieval Oak:
  • Fix scan issue in level 3 archery
• Stalactite Caves:
  • Fix barracks level 2 needing end stairs
  • Fix mine having its ladder replaced, condusing the miner
• Ancient Athens:
  • Fix some buildings used round pillars instead of square ones at some places
• Desert Oasis:
  • Fix anchors being incorrect in the barracks, warehouse and courier offices (making them appear weird in the build tool)
  • Fix hut blocks of level 3 guard tower and level 5 cookery thinking they are architect cutter blocks
  • Fix mystical site bying pyrophoric. Now a safer form of fire is used
• Fortress:
  • Remove suggestions from townhall

Testing

• Yes I tested this before submitting it.
• I also did a multiplayer test.

Review please