enable checking files more often

PadelClub/Views/Navigation/MainView.swift

@@ -56,6 +56,13 @@ struct MainView: View {
         TabView(selection: selectedTabHandler) {
             ActivityView()
                 .tabItem(for: .activity)
+                .onAppear {
+                    if checkingFiles == false {
+                        Task {
+                            await self._checkSourceFileAvailability()
+                        }
+                    }
+                }
             TournamentOrganizerView()
                 .tabItem(for: .tournamentOrganizer)
             OngoingView()