global: optimize imports

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

ui/src/main/java/com/wireguard/android/widget/ToggleSwitch.java

@@ -6,14 +6,15 @@
 
 package com.wireguard.android.widget;
 
-import com.wireguard.util.NonNullForAll;
-
 import android.content.Context;
 import android.os.Parcelable;
-import androidx.annotation.Nullable;
 import android.util.AttributeSet;
 import android.widget.Switch;
 
+import com.wireguard.util.NonNullForAll;
+
+import androidx.annotation.Nullable;
+
 @NonNullForAll
 public class ToggleSwitch extends Switch {
     private boolean isRestoringState;