fix ui for validating datepicker

PadelClub/Views/Team/EditingTeamView.swift

@@ -188,15 +188,18 @@ struct EditingTeamView: View {
                 DatePicker(selection: $registrationDateModified) {
                     if registrationDate != registrationDateModified {
                         HStack {
-                            FooterButtonView("Valider") {
+                            Button("Valider", systemImage: "checkmark.circle") {
                                 registrationDate = registrationDateModified
                             }
+                            .tint(.green)
                             Divider()
-                            FooterButtonView("Annuler", role: .cancel) {
+                            Button("Annuler", systemImage: "xmark.circle", role: .cancel) {
                                 registrationDateModified = registrationDate
                             }
-                            .foregroundStyle(.blue)
+                            .tint(.logoRed)
                         }
+                        .labelStyle(.iconOnly)
+                        .buttonStyle(.borderedProminent)
                     } else {
                         Text("Inscription")
                         Text(registrationDateModified.localizedWeekDay().capitalized)