gridfixes: impl_ni_relayout: update the child window position/size last
gridfixes: impl_ni_relayout: update the child window position/size last

it relies on the other calculations (in particular calculation of the
column widths) being finished

Change-Id: I599aa5b2938e2aa810980c00ac8f598b4f4fcfcb
Reviewed-on: https://gerrit.libreoffice.org/551
Reviewed-by: Miklos Vajna <16f13092e03e3d9e997de904d0f86cc803fb6ef7@suse.cz>
Tested-by: Miklos Vajna <16f13092e03e3d9e997de904d0f86cc803fb6ef7@suse.cz>

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core