Minor fixes, added slightly more guard variety in the central

Changed the incoming Mail into the Mail Box

Attempted fix of a letter bug in the beginning of the mission.
added in a chest that contains said letter if the letter did not spawn inside the home.

Added a bit more detail to the "Central"

Added more bandit's encounter in the wild's, full bandit expansion will come later as a seperate mod.

Added in a tower in the White island.
Attempted fix of the low visibility

Fixed courier double dialogue

added detail to the central,

Attempted fix of visibility issue

Fixed end-dungeon Loot

Fixed minor bug's in the Central