simplify Nushell config file

after/plugin/nushell.lua

+-- see https://github.com/nushell/integrations/blob/main/nvim/init.lua
+-- for complementary information and comments for these options
 vim.opt.shell = "nu"
+vim.opt.shelltemp = false
+vim.opt.shellredir = "out+err> %s"
 vim.opt.shellcmdflag = "--stdin --no-newline -c"
--- stop quote everything e.g :!ls -> !'"ls"' -> is not a command
-vim.opt.shellquote = ""
+vim.opt.shellxescape = ""
 vim.opt.shellxquote = ""
-
--- use pipes instead of temp files.
--- temp files sourced as follows:
---"(ls) < /8aYVe5/2 out+err> /8aYVe5/3"
--- which results in an error in nu.
--- And there is only way to change the second part with 'shellredir', but not the first.
--- neovim "remove shelltemp" discussion: https://github.com/neovim/neovim/issues/1008
-vim.opt.shelltemp = false
--- if "shelltemp = false" this is not used
--- vim.opt.shellredir = "out+err> %s"
-
--- save to an nvim temp file for quickfix buffer and also print to the output window
--- command :make, for example with makeprg = 'lua %s':
--- :!lua test.lua  | tee { save -f --raw /var/TRw4xR/5 }
-vim.opt.shellpipe = "| tee { save -f --raw %s }"
+vim.opt.shellquote = ""
+vim.opt.shellpipe = ''..
+    '| complete'..
+    '| update stderr { ansi strip }'..
+    '| tee { get stderr | save --force --raw %s }'..
+    '| into record'