Remove unnecessary confirmation message after acknowledging alerts

Remove the `doneToast` locale keys and the toast notification call in `upcoming-meeting-alert.tsx`.

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artifacts/tx-os/src/components/executive-meetings/upcoming-meeting-alert.tsx

@@ -414,7 +414,6 @@ export function UpcomingMeetingAlert() {
         body: JSON.stringify({ action: "acknowledged" }),
       });
       await refetchAlertState();
-      toast({ title: t("executiveMeetings.alert.doneToast") });
     } catch (err) {
       toast({
         title: t("executiveMeetings.alert.saveFailed"),

artifacts/tx-os/src/locales/ar.json

@@ -1066,7 +1066,6 @@
       "postpone": "تأجيل",
       "dismiss": "تجاهل التنبيه",
       "dragHandle": "اسحب للتحريك",
-      "doneToast": "تم تأكيد المشاهدة",
       "dismissToast": "تم تجاهل التنبيه",
       "openMeetings": "فتح الاجتماعات",
       "details": "تفاصيل",

artifacts/tx-os/src/locales/en.json

@@ -980,7 +980,6 @@
       "postpone": "Postpone",
       "dismiss": "Dismiss alert",
       "dragHandle": "Drag to move",
-      "doneToast": "Marked as acknowledged",
       "dismissToast": "Alert dismissed",
       "openMeetings": "Open meetings",
       "details": "Details",