Fix: tapping task notification now marks it complete

Tap body → marks complete + navigates to tasks.
Swipe action 'Mark Complete' → marks complete without opening app.
TaskViewModel.reload() called on foreground to sync UserDefaults changes
made while app was backgrounded.

Co-Authored-By: Kutesir <tqwyy79vzn@privaterelay.appleid.com>

KisaniCal/ContentView.swift

@@ -88,6 +88,7 @@ struct ContentView: View {
         }
         .onChange(of: scenePhase) { phase in
             if phase == .active {
+                taskVM.reload()
                 NotificationManager.shared.reschedule(workoutVM: workoutVM, taskVM: taskVM)
             }
         }