Put back empty picker text

Secretive/Views/CreateSecretView.swift

@@ -27,7 +27,7 @@ struct CreateSecretView<StoreType: SecretStoreModifiable>: View {
                     }
                     HStack {
                         VStack(spacing: 20) {
-                            Picker("Authentication", selection: $requiresAuthentication) {
+                            Picker("", selection: $requiresAuthentication) {
                                 Text("Required (Biometrics or Password) before each use").tag(true)
                                 Text("Not required when Mac is unlocked").tag(false)
                             }