make usb hw enumerate period configurable

src/main/java/com/sparrowwallet/sparrow/AppServices.java

@@ -70,7 +70,7 @@ public class AppServices {
 
     private static final int SERVER_PING_PERIOD_SECS = 60;
     private static final int PUBLIC_SERVER_RETRY_PERIOD_SECS = 3;
-    private static final int ENUMERATE_HW_PERIOD_SECS = 30;
+    public static final int ENUMERATE_HW_PERIOD_SECS = 30;
     private static final int RATES_PERIOD_SECS = 5 * 60;
     private static final int VERSION_CHECK_PERIOD_HOURS = 24;
     private static final ExchangeSource DEFAULT_EXCHANGE_SOURCE = ExchangeSource.COINGECKO;
@@ -358,7 +358,7 @@ public class AppServices {
 
     private Hwi.ScheduledEnumerateService createDeviceEnumerateService() {
         Hwi.ScheduledEnumerateService enumerateService = new Hwi.ScheduledEnumerateService(null);
-        enumerateService.setPeriod(Duration.seconds(ENUMERATE_HW_PERIOD_SECS));
+        enumerateService.setPeriod(Duration.seconds(Config.get().getEnumerateHwPeriod()));
         enumerateService.setOnSucceeded(workerStateEvent -> {
             List<Device> devices = enumerateService.getValue();
 

src/main/java/com/sparrowwallet/sparrow/io/Config.java

@@ -15,6 +15,7 @@ import java.lang.reflect.Type;
 import java.util.*;
 import java.util.stream.Collectors;
 
+import static com.sparrowwallet.sparrow.AppServices.ENUMERATE_HW_PERIOD_SECS;
 import static com.sparrowwallet.sparrow.net.PagedBatchRequestBuilder.DEFAULT_PAGE_SIZE;
 import static com.sparrowwallet.sparrow.net.TcpTransport.DEFAULT_MAX_TIMEOUT;
 
@@ -45,6 +46,7 @@ public class Config {
     private List<File> recentWalletFiles;
     private Integer keyDerivationPeriod;
     private File hwi;
+    private int enumerateHwPeriod = ENUMERATE_HW_PERIOD_SECS;
     private Boolean hdCapture;
     private String webcamDevice;
     private ServerType serverType;
@@ -309,6 +311,10 @@ public class Config {
         flush();
     }
 
+    public int getEnumerateHwPeriod() {
+        return enumerateHwPeriod;
+    }
+
     public Boolean getHdCapture() {
         return hdCapture;
     }