Multiple selection

[thistlillo]

The possibility to select multiple files here and there is very convenient, but very dangerous as well.

I think it would be a nice addition:

• a better way to signal that multiple items are selected
• a hotkey for deselecting all the files that are selected.

[mikekazakov]

Well NC highlights the selected items and shows the count with the combined size.
The hotkey already exists and is described in https://github.com/mikekazakov/nimble-commander/blob/main/Docs/Help.md#selection