fix: better explain the counters difference (#2710)

Author: ab-smith

frontend/messages/en.json

@@ -911,7 +911,7 @@
 	"mtdHelpText": "Maximum Tolerable Downtime",
 	"disasterRecoveryObjectives": "Disaster Recovery objectives",
 	"noExpirationDateSet": "No expiration date set",
-	"sumpageTotal": "total",
+	"sumpageTotal": "total (all categories)",
 	"sumpageActive": "active",
 	"sumpageDeprecated": "deprecated",
 	"sumpageToDo": "to do",

frontend/messages/fr.json

@@ -885,7 +885,7 @@
 	"mtdHelpText": "Temps d'arrêt maximal tolérable",
 	"disasterRecoveryObjectives": "Objectifs de reprise d'activité",
 	"noExpirationDateSet": "Aucune date d'expiration définie",
-	"sumpageTotal": "Total",
+	"sumpageTotal": "Total (toutes catégories)",
 	"sumpageActive": "Actif",
 	"sumpageDeprecated": "Obsolète",
 	"sumpageToDo": "A faire",