client: fix translation string

client/src/__locales/en.json

@@ -685,7 +685,7 @@
     "schedule_off_days": "Blocked services is off:",
     "schedule_time_all_day": "All day",
     "schedule_modal_description": "This schedule will replace any existing schedules for the same day of the week. Each day of the week can have only one inactivity period.",
-    "schedule_modal_time_off": "Blocked services are off on:",
+    "schedule_modal_time_off": "Blocked services are disabled at this time:",
     "schedule_new": "New schedule",
     "schedule_edit": "Edit schedule",
     "schedule_save": "Save schedule",