HPCC-10405 Change WU State column for better display

On legacy EclWatch Activity page, the WU State column
is changed for better display: 1. change width from 200
to 300; 2. remove an extra word 'on' from the display.

Signed-off-by: Kevin Wang <kevin.wang@lexisnexis.com>
Merge pull request #5175 from wangkx/h10405

HPCC-10405 Change WU State column for better display

Reviewed-By: Anthony Fishbeck <anthony.fishbeck@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>