refactor: localise globals to prevent shadowing

See #456.

imports/zones/client.lua

@@ -15,7 +15,8 @@ local glm = require 'glm'
 ---@field [string] any
 
 ---@type table<number, CZone>
-Zones = {}
+local Zones = {}
+_ENV.Zones = Zones
 
 local function nextFreePoint(points, b, len)
     for i = 1, len do

imports/zones/server.lua

@@ -1,7 +1,8 @@
 local glm = require 'glm'
 
 ---@type table<number, CZone>
-Zones = {}
+local Zones = {}
+_ENV.Zones = Zones
 
 local function removeZone(self)
     Zones[self.id] = nil

init.lua

@@ -84,7 +84,7 @@ local function call(self, index, ...)
     return module
 end
 
-lib = setmetatable({
+local lib = setmetatable({
     name = ox_lib,
     context = context,
     onCache = function(key, cb)
@@ -95,6 +95,8 @@ lib = setmetatable({
     __call = call,
 })
 
+_ENV.lib = lib
+
 -- Override standard Lua require with our own.
 require = lib.require
 
@@ -167,7 +169,7 @@ end
 ---Caches the result of a function, optionally clearing it after timeout ms.
 function cache(key, func, timeout) end
 
-cache = setmetatable({ game = GetGameName(), resource = resourceName }, {
+local cache = setmetatable({ game = GetGameName(), resource = resourceName }, {
     __index = context == 'client' and function(self, key)
         AddEventHandler(('ox_lib:cache:%s'):format(key), function(value)
             self[key] = value
@@ -191,6 +193,8 @@ cache = setmetatable({ game = GetGameName(), resource = resourceName }, {
     end,
 })
 
+_ENV.cache = cache
+
 local notifyEvent = ('__ox_notify_%s'):format(cache.resource)
 
 if context == 'client' then