remove "Goods" from trade window stings
Summary: Resources should be referred to as “Resources”, not as “Goods”. This patch updates the Barter & Trade window to reflect that.
Test Plan: Check for mistakes and omissions.
Reviewers: O8 JS GUI, Gallaecio
Reviewed By: Gallaecio
Subscribers: elexis, Krinkle, bb, O8 JS GUI
Differential Revision: https://code.wildfiregames.com/D2306