- forecast_days now defaults to 5 (was 3) across default_settings(),
check()'s fallback, and the settings form's pre-selected option.
- New show_date setting (on by default): weekday + date in the same
"Samstag, 25. Juli" format Clock already used. Combined with the
city name into one header line above the icon/temp block when both
are on ("Münster · Samstag, 25. Juli"), each independently
toggleable.
- Moved the weekday/month name lists and the "Weekday, D. Month"
formatting out of clock.py into render_utils.format_date_de(), so
Weather reuses the exact same formatting instead of a second copy
that could drift.