fix: nickhider not work for "extra" text field

Author: 70CentsApple

src/main/java/net/apple70cents/chattools/utils/TextUtils.java

@@ -325,7 +325,7 @@ private static boolean isProtectedField(String key) {
     }
 
     private static boolean isTextField(String key) {
-        return key.contains("text") || key.contains("value");
+        return key.contains("text") || key.contains("value") || key.contains("extra");
     }
 
     private static boolean isColorField(String key) {