[Gameplay] - Reduce Archer and Structure ranges.

Due to the new way attack ranges are calculated (r24217 / rP24217), structures can shoot significantly further, making raiding much harder.
This patch lowers the maximum attack range of archers and structures from 70 to 60, and of slingers from 50 to 45 (javelineers keep 30), as requested by @Feldfeld and @ValihrAnt. It also reduces the vision range of defensive structures and artillery accordingly.

Patch by: @Nescio
Differential revision: D3381
Reviewed by: @wraitii
Informally accepted by: @borg-
Comment by: @Angen