fix(filesystem): remove redundant exclusion breaking filter for find (#1459)

[obukhovaa]

Not sure what was the purpose of that exclusion, but it was causing issues when find command is used within filter logic.

if not ignore.dotfiles then
  append("-not", "-path", "*/.*")
end

You would expect that when ignore-dotfiles is false you don't want to exclude dot files and directories. In fact it was not just excluding dot files, but all the other valid options if current path contains any . directories. For example for me the resulting command was

find  "/Users/nouwa/.config/nvim" -not -path '*/.*' -iname "*lua*"

and because my path has .config -- all files were excluded, producing empty search result.

Once this section removed, eveyrhing works as expected with both ignore.dotfiles = true and false.