HPCC-10326 Allow highlight and copy from all grids

Fixes HPCC-10326

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #5493 from GordonSmith/HPCC-10326

HPCC-10326 Allow highlight and copy from all grids

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>