HPCC-8795 WU Query Page Add Context Menu

Add context menu to WU Query Widget.

Fixes HPCC-8795

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #3960 from GordonSmith/HPCC-8795

HPCC-8795 WU Query Page Add Context Menu

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>