Refactor multiple Heimdall modules to use class-based structure for improved organization and clarity

Modules/Inviter.lua

@@ -1,5 +1,6 @@
 local _, shared = ...
 ---@cast shared HeimdallShared
+local ModuleName = "Inviter"
 
 ---@class HeimdallInviterConfig
 ---@field enabled boolean
@@ -14,8 +15,6 @@ local _, shared = ...
 ---@field afkThreshold number
 ---@field listeningChannel table<string, boolean>
 
-local ModuleName = "Inviter"
-
 ---@class Inviter
 shared.Inviter = {
 	Init = function()