Don't show alarms of past dates when reusing alarm as "on specific dates"

[aronovgj]

To Reproduce Steps to reproduce the behavior:

• Create an alarm (not sure which, I think a once)
• some days later change it to on specific dates and choose some dates

Expected behavior

• Only chosen dates should be displayed

Actual behavior

• original past date is also shown

Screenshots

v0.6.0-beta2 Android 15 Pixel 7 pro

Additional info: In the screenshot it also shows "no future dates" although future dates were selected