[TimePicker][DatePicker] Oddly shaped shading effect between selection dates

[ToukZ]

Describe the bug

After opening up a date selector, dates selected have a separation between month/day/year, but there is currently an oddly shaped shading effect between them.

Steps to reproduce the bug

1. Go to 'DatePicker' or 'TimePicker'
2. Open the component
3. See Odd Shading

Expected behavior

There shouldn't be an oddly shaped shading between selected dates

Screenshots

(DarkMode, TimePicker)

(LightMode, DatePicker)

NuGet package version

WinUI 3 - Windows App SDK 1.4.2: 1.4.231008000

Windows version

Windows 10 (21H2): Build 19044

Additional context

No response