Do not delete current folder when using delete hotkey in files and no files are selected

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Is your feature request related to a problem? Please describe.
When using the files app, the delete key will delete the current folder if you have no files selected. This caught me completely off guard and I almost deleted my whole documents folder without noticing. I'm lucky I caught it.

Related: using the delete key seems to not update the UI, unlike when using the options at the top of the UI.

Describe the solution you'd like
In my opinion, with no visibly selected file, the delete key should do nothing. This would match all other file explorers I've used on desktops.

Describe alternatives you've considered
If this is desired behavior for some admins/users, provide a customization option to remove this.

Additional context
Nextcloud version: Nextcloud Hub 26 Spring (34.0.1)

Start by tracing delete-key handling in the Files app and compare it with the delete action exposed in the top UI. Confirm the behavior with no files selected, then make sure the hotkey performs no deletion in that state and verify that normal deletion still works when a file is selected.