Use correct task bounds after updating override config

Use new task bounds after updating override configuration
when we move existing task to front or launch new one.
This fixes issues when task with defined minimal size is
launched in freeform or split-screen modes. In these cases
minimal size was not applied until task was resized manually.

Bug: 27621228
Change-Id: I0630962578815a77bfb556150cb71fec5a74ee37