Add some Android 12 widget settings

* Reconfigurable
* Configuration optional
* Target size

app/src/main/res/xml/scrollable_widget_provider_info.xml

@@ -3,6 +3,9 @@
 <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
   xmlns:tools="http://schemas.android.com/tools"
   android:configure="org.tasks.widget.WidgetConfigActivity"
+  android:widgetFeatures="reconfigurable|configuration_optional"
+  android:targetCellHeight="2"
+  android:targetCellWidth="2"
   android:initialKeyguardLayout="@layout/scrollable_widget"
   android:initialLayout="@layout/scrollable_widget"
   android:minHeight="110dp"