Open the until-date picker on today's local date (#405)

The repeat-until picker defaulted to today's UTC date, so near midnight it opened on yesterday or tomorrow depending on the zone. It now uses the device zone's today.

Co-authored-by: Jean-Luc Makiola <business@jeanlucmakiola.de>
Reviewed-on: https://codeberg.org/jlmakiola/calendula/pulls/405

app/src/main/java/de/jeanlucmakiola/calendula/ui/edit/EventEditScreen.kt

@@ -159,7 +159,6 @@ import de.jeanlucmakiola.calendula.ui.common.eventFormFieldLabel
 import de.jeanlucmakiola.floret.components.FullScreenPicker
 import de.jeanlucmakiola.floret.components.GroupedRow
 import de.jeanlucmakiola.floret.components.GroupedSurface
-import de.jeanlucmakiola.calendula.ui.common.MILLIS_PER_DAY
 import de.jeanlucmakiola.floret.components.InlineTextField
 import de.jeanlucmakiola.floret.components.OptionCard
 import de.jeanlucmakiola.floret.components.OptionPicker
@@ -1910,9 +1909,8 @@ private fun RecurrencePickerDialog(
 
     if (showUntilPicker) {
         CalendarDatePickerDialog(
-            initial = untilDate ?: LocalDate.fromEpochDays(
-                (Clock.System.now().toEpochMilliseconds() / MILLIS_PER_DAY).toInt(),
-            ),
+            initial = untilDate
+                ?: Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault()).date,
             onConfirm = {
                 untilIso = it.toString()
                 showUntilPicker = false