style(config): stylua changed quotes

Author: MarcoBuess

lua/markmap/config.lua

@@ -3,7 +3,7 @@ local M = {}
 
 local uv = vim.uv or vim.loop
 local is_windows = uv.os_uname().sysname == "Windows_NT"
-local is_android = vim.fn.isdirectory('/data') == 1
+local is_android = vim.fn.isdirectory("/data") == 1
 
 ---Parse user options, or set the defaults
 ---@param opts table A table with options to set.