docs(#3241): move decorator meta into place

Author: alex-courtis

lua/nvim-tree/_meta/api_decorator.lua lua/nvim-tree/_meta/api/decorator.lualua/nvim-tree/_meta/api_decorator.lua renamed to lua/nvim-tree/_meta/api/decorator.lua

@@ -76,7 +76,7 @@
 ---@nodoc
 local api = {
   commands = require("nvim-tree._meta.api.commands"),
-  decorator = require("nvim-tree._meta.api_decorator"),
+  decorator = require("nvim-tree._meta.api.decorator"),
   events = require("nvim-tree._meta.api.events"),
   filter = require("nvim-tree._meta.api.filter"),
   fs = require("nvim-tree._meta.api.fs"),

lua/nvim-tree/api.lua

@@ -3,7 +3,7 @@
 ---@field protected enabled boolean
 ---@field protected highlight_range nvim_tree.api.decorator.highlight_range
 ---@field protected icon_placement nvim_tree.api.decorator.icon_placement
-local Decorator = require("nvim-tree._meta.api_decorator").Decorator:extend()
+local Decorator = require("nvim-tree._meta.api.decorator").Decorator:extend()
 
 ---TODO #3241 maybe create an internal decorator class and lose the UserDecorator
 ---@class (exact) DecoratorArgs