games/wesnoth: update to 1.18.2 release (+)

What's new in version 1.18.2:
Translations

• Updated translations: Chinese (Simplified), French, Ukrainian

WML Engine

• Fixed out of sync errors due to bad undo/redo handling.

Miscellaneous and Bug Fixes

• Server-side fix for the "Something is wrong with the addon version check database supporting the multiplayer lobby." error (issue #8805)
• Potential fix for log files not being written on Windows.