Move all config definitions to their respective modules

Modules/AchievementSniffer.lua

@@ -2,6 +2,16 @@ local _, shared = ...
 ---@cast shared HeimdallShared
 local ModuleName = "AchievementSniffer"
 
+---@class HeimdallAchievementSnifferConfig
+---@field enabled boolean
+---@field debug boolean
+-----@field texture string
+-----@field offsetX number
+-----@field offsetY number
+---@field rescan boolean
+---@field scanInterval number
+-----@field iconScale number
+
 -- local HeimdallRoot = "Interface\\AddOns\\Heimdall\\"
 -- local TextureRoot = HeimdallRoot .. "Texture\\"