What to refactor

timed frontend

Why refactor it

use ui-core

How to refactor it

• move the timed frontend in pnpm workspace
• [REFACTOR]: migrate from moment to luxon #1232
• export tailwind styles/config into seperate package in the pnpm workspace
• start using ui-core (e.g. ReportDurationpicker)
• adjust linting

Required

• I have checked past issues to ensure that this isn't a duplicate.