feature request: Support for symbolic linked workspace

[PandaTinker]

Problem: When saving new files in a symbolic linked workspace, the plugin throws warning.

Error detected while processing BufWritePre Autocommands for "<buffer=1>":
Error executing lua callback: ...modifications.nvim/lua/lsp-format-modifications/init.lua:84: attempt to index local 'file_inf o' (a nil value)
stack traceback:
...modifications.nvim/lua/lsp-format-modifications/init.lua:84: in function 'format_modifications'
/home/yi/.config/nvim/lua/kickstart/plugins/lspconfig.lua:115: in function </home/yi/.config/nvim/lua/kickstart/plugin