feat(app/utils, plugins): normalize dates with improved format

[lowlighter]

Normalize date formatting accross renders:

//Date
{day:"numeric", month:"short", year:"numeric"}

//Time
{hour:"2-digit", minute:"2-digit", second:"2-digit"}

//Ref: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat

(See #564)