Focus highlighter and Magnifier now follow the focused cell in Excel (#19648)
Fixes #19641
Fixes #20298
Summary of the issue:
In Excel, visual highlighters (focus and navigator object) did not highlight the focused cell but only the whole worksheet.
Magnifier does not follow the focused cell either.
Description of user facing changes:
Visual highlighters now follow the focused cell and highlight it.
Magnifier follows the focused cell
Description of developer facing changes:
N/A
Description of development approach:
Created the _get_locationmethod for Excel cell object.