[neovim] increased width for neotree and removed white line function

nix/home/neovim/neovim.nix

@@ -79,7 +79,7 @@
         },
         window = {
           position = "left",
-          width = 36,
+          width = 45,
         },
       })
       require("neo-tree.sources.manager").show("filesystem")
@@ -97,21 +97,6 @@
           })
         end
       })
-
-
-      -- function for new line
-      _G.add_new_line = function()
-        local n_lines = vim.api.nvim_buf_line_count(0)
-        local last_nonblank = vim.fn.prevnonblank(n_lines)
-        if last_nonblank <= n_lines then vim.api.nvim_buf_set_lines(0, last_nonblank, n_lines, true, { ''' }) end
-      end
-
-      vim.cmd([[
-        augroup AddNewlineOnSave
-          autocmd!
-          autocmd BufWritePre * lua _G.add_new_line()
-        augroup END
-      ]])
     '';
 
     # auto-complete