feat(loader): warn when maplocalleader is changed after init (#1326)

* feat(loader): warn when maplocalleader is changed after init

* docs: default maplocalleader

---------

Co-authored-by: Folke Lemaitre <folke.lemaitre@gmail.com>

lua/lazy/core/config.lua

@@ -199,6 +199,9 @@ M.me = nil
 ---@type string
 M.mapleader = nil
 
+---@type string
+M.maplocalleader = nil
+
 function M.headless()
   return #vim.api.nvim_list_uis() == 0
 end
@@ -245,6 +248,7 @@ function M.setup(opts)
   -- disable plugin loading since we do all of that ourselves
   vim.go.loadplugins = false
   M.mapleader = vim.g.mapleader
+  M.maplocalleader = vim.g.maplocalleader
 
   if M.headless() then
     require("lazy.view.commands").setup()

lua/lazy/core/loader.lua

@@ -50,6 +50,7 @@ function M.setup()
     Util.track()
   end
   Config.mapleader = vim.g.mapleader
+  Config.maplocalleader = vim.g.maplocalleader
 
   -- report any warnings & errors
   Config.spec:report()