fix(#1503): focus last win before close (#1509)

lua/nvim-tree/view.lua

@@ -188,11 +188,11 @@ function M.close()
   local current_win = a.nvim_get_current_win()
   for _, win in pairs(a.nvim_list_wins()) do
     if tree_win ~= win and a.nvim_win_get_config(win).relative == "" then
-      a.nvim_win_close(tree_win, true)
       local prev_win = vim.fn.winnr "#" -- this tab only
       if tree_win == current_win and prev_win > 0 then
         a.nvim_set_current_win(vim.fn.win_getid(prev_win))
       end
+      a.nvim_win_close(tree_win, true)
       events._dispatch_on_tree_close()
       return
     end