fix(#2859): make sure window still exists when restoring options (#2863)

Co-authored-by: Alexander Courtis <alex@courtis.org>

lua/nvim-tree/actions/node/open-file.lua

@@ -167,6 +167,8 @@ local function pick_win_id()
 
   if laststatus == 3 then
     for _, id in ipairs(not_selectable) do
+      -- Ensure window still exists at this point
+      if vim.api.nvim_win_is_valid(id) then
         for opt, value in pairs(win_opts[id]) do
           if vim.fn.has "nvim-0.10" == 1 then
             vim.api.nvim_set_option_value(opt, value, { win = id })
@@ -176,6 +178,7 @@ local function pick_win_id()
         end
       end
     end
+  end
 
   vim.o.laststatus = laststatus