Add ability to select multiple items to restore at the same time

[modem]

Currently, the only way to restore multiple items at the same time is to restore a full folder contents, but if one wants to restore multiple files/folders from different places in the folder structure, one needs to restore one at the time. It would be create if we could get a way to select multiple restore items and restore all of them at once. A quick file/folder search/filter would also be a plus so that we can easily find what we want the restore.