Quick nav again no longer automatically turns on focus mode in virtualBuffers when jumping to an interactive element when Automatic focus mode for caret movement is turned on. Fixes #4767
Specifically:
* browseMode.QuicknavItem.moveTo: now only handles the move, not the reporting. It also no longer takes any extra arguments.
* added browseMode.QuickNavItem.report, which is called to report the item where moveTo would have also done this in the past. report takes a readUnit optional argument. The gesture argument is not needed at all as now the resumeSayAll check is done outside of the call to report in the quickNavScript code itself.
* VirtualBufferquickNavItem: overode moveTo method to correctly pass reason_quickNav when setting the selection so that focus mode is not inappropriately turned on.