Name new notes based on the datetime

Is your feature request related to a problem? Please describe.
New note names are usually "New note (n)" and then get renamed to part of the text at the start of the note. However, it seems there are some issues: https://github.com/nextcloud/notes/issues/1653. The default "New note (n)" provides no information about the note. Also, when sharing something like a URL to the Android App, the note name is either part of the website name or "httpswww....", but it's also inconsistent depending on the app you share from.

Describe the solution you'd like
I would like an option in the settings to name all new notes with the date and time they were created. For example: "2026-05-01T09-16-40". The title of these notes will not be renamed when you enter text and save the file for the first time. I don't know if the settings are currently shared across devices or platform types, but that would be nice.

Describe alternatives you've considered
I can keep using the same naming convention, but it gives no information and is also buggy as discussed before.

Additional context
I would be happy to help implement this feature if needed :)

Start by reading issue 1653 and tracing the existing new-note naming and settings behavior in the JavaScript app. Confirm how settings are shared across devices or platforms, then implement the requested datetime naming, title-preservation behavior, and settings option; done means new notes consistently use the configured format.