Widget background

[xmha97]

Hi, please use the Google Calendar background for Prognoza widget.

As you can see, the color of the widget is different.

You can see the codes of the "Persian Calendar" app:

https://github.com/persian-calendar/persian-calendar

val backgroundColor =
        if (prefersWidgetsDynamicColors) context.getColor(
            if (isNightMode) android.R.color.system_accent2_800
            else android.R.color.system_accent2_50
        )
        else null
    val foregroundColor =
        if (prefersWidgetsDynamicColors) context.getColor(
            if (isNightMode) android.R.color.system_accent1_50
            else android.R.color.system_accent1_600
        )
        else null

Thanks 🙏

[xmha97]

cc: @davidtakac @linux2good