fix(pick): prevent invalid buffer when opening mini.files

Author: abeldekat

lua/mini/pick.lua

@@ -3564,11 +3564,12 @@ H.set_cursor = function(win_id, lnum, col) pcall(vim.api.nvim_win_set_cursor, wi
 
 H.set_curwin = function(win_id)
   if not H.is_valid_win(win_id) then return end
+
   -- Explicitly preserve cursor to fix Neovim<0.10 after choosing position in
   -- already shown buffer
   local cursor = vim.api.nvim_win_get_cursor(win_id)
-  vim.api.nvim_set_current_win(win_id)
-  H.set_cursor(win_id, cursor[1], cursor[2] + 1)
+  local ok, _ = pcall(vim.api.nvim_set_current_win, win_id)
+  if ok then H.set_cursor(win_id, cursor[1], cursor[2] + 1) end
 end
 
 H.clear_namespace = function(buf_id, ns_id) pcall(vim.api.nvim_buf_clear_namespace, buf_id, ns_id, 0, -1) end