Getting rid of the length of selectedRows in customToolbarSelect text (on the left side)

I am looking to change the title of customToolbarSelect to just
'Row Selected'
instead of
'1 Row Selected'

I have a custom toolbar component that I am using customToolbarSelect option to use but can't change the text of the toolbar, only the icons. I believe it is probably an easy change. Please let me know, thanks!

Start at the customToolbarSelect implementation and trace how selectedRows is used to construct the toolbar title. Done means the title is rendered as "Row Selected" without the count; the issue names no file or test to run.

Written by the indexing model from the issue text.