feat: option to set path destination to parent folder when cursor is on a closed folder while creating files

[booperlv]

a more thorough description of the feature in #622
Seems like this is the first instance of an option for the fs.lua module, so I decided to go with directly adding the variable there.
This was the only name I could think of that made sense, but I'm not sure if it makes enough sense, so please do help me think of a better name if so.

Please do tell me if there's anything that I should change! Thanks :)

[CKolkey]

I've had something similar in a fork for a while:

  local add_into
  if node.entries ~= nil and node.open then
    add_into = utils.path_add_trailing(node.absolute_path)
  else
    add_into = node.absolute_path:sub(0, -(#node.name + 1))
  end

[booperlv]

I've had something similar in a fork for a while:

  local add_into
  if node.entries ~= nil and node.open then
    add_into = utils.path_add_trailing(node.absolute_path)
  else
    add_into = node.absolute_path:sub(0, -(#node.name + 1))
  end

This does seem like a more robust solution! I'll change it accordingly :)