Option to set date format for date menu

[sluedecke]

Is your feature request related to a problem? Please describe. No

Describe the solution you'd like An option to set the date format in a text field. Formatting codes could be taken from: https://help.gnome.org/users/gthumb/unstable/gthumb-date-formats.html

Describe alternatives you've considered https://extensions.gnome.org/extension/4085/big-sur-status-area/ provides such an option but is otherwise not what I would like to have on my desktop.