Changed label on summary LED to be more clear

Author: jeremyspencer39171

base/uk.ac.stfc.isis.ibex.opis/resources/HV/HVMonitorSummaryDisplay.opi

@@ -270,7 +270,7 @@ $(pv_value)</tooltip>
       <wuid>4b5e83ab:16368e752d2:-7cca</wuid>
       <transparent>false</transparent>
       <auto_size>false</auto_size>
-      <text>All channels on card on/off:</text>
+      <text>All channels on card on:</text>
       <scripts />
       <height>20</height>
       <border_width>1</border_width>