Note info / note references have dates of different format

### What
Something that existed in the old info panel too, but became easier to notice now, is that date formats used for referenced notes and the note itself are different:

### Why
Consistency

No file or test is named in the issue. Start by locating the UI rendering for a note's date and its referenced-note dates, then compare the formats shown in the screenshot; done means both use the same date format.

Written by the indexing model from the issue text.