Change SoftKeyboard.IsActive to manually set property
Change SoftKeyboard.IsActive to manually set property

 - Switch hadFocusWidget back to instance member
   - Duplicate ContentOffsets would null static member losing IsActive state
 - Fixes #106321662

larsbrubaker/agg-sharp,mmoening/agg-sharp,MatterHackers/agg-sharp,mmoening/agg-sharp,mmoening/agg-sharp,jlewin/agg-sharp