Use HeaderReplacement's id field in JSONs

bubble-server/src/main/java/bubble/rule/request/HeaderReplacement.java

@@ -4,7 +4,6 @@
  */
 package bubble.rule.request;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.NonNull;
@@ -14,8 +13,8 @@ import lombok.experimental.Accessors;
 @NoArgsConstructor @Accessors(chain=true)
 public class HeaderReplacement implements Comparable<HeaderReplacement> {
 
-    @JsonIgnore public String getId() { return regex; }
-    @JsonIgnore public void setId(String id) {} // noop
+    public String getId() { return regex; }
+    public void setId(String id) {} // noop
 
     @Getter @Setter private String regex;
     @Getter @Setter private String replacement;