Implement new customizable date/time format settings, compatible with Translations

[stavr666]

NetBox version

v3.7.1

Feature type

New functionality

Proposed functionality

According to #14862, with ENABLE_LOCALIZATION = True local datetime culture linked to selected language, ignoring all _FORMAT options from config.

Add user-side option to allow customize datetime format(s) to either entered pattern(s) or predefined presets.

Use case

Allow users to have best-perceived experience, with both native language and familiar date and time formats.

Database changes

None.

External dependencies

No response