refactor: Use stdpath(config) for path expansion

Refactor: Change cmake kits path back to nil

Author: drook207

lua/cmake-tools/const.lua

@@ -24,8 +24,8 @@ local const = {
     ---@type string|fun(): string
     target = vim.loop.cwd, -- path or function returning path to directory, this is used only if action == "soft_link" or action == "copy"
   },
-  cmake_config_path = vim.fn.expand("~") .. "/.config/cmake-tools/", -- this is used to specify global cmake config path
-  cmake_kits_path = vim.fn.expand("~") .. "/.config/cmake-tools/cmake-kits.json", -- this is used to specify global cmake kits path, see CMakeKits for detailed usage
+  cmake_config_path = vim.fn.stdpath("config") .. "/cmake-tools/", -- this is used to specify global cmake config path
+  cmake_kits_path = nil, -- this is used to specify global cmake kits path, see CMakeKits for detailed usage
   cmake_variants_message = {
     short = { show = true }, -- whether to show short message
     long = { show = true, max_length = 40 }, -- whether to show long message