Made some classes final

src/main/java/me/lortseam/completeconfig/gui/cloth/GuiProviderRegistration.java

@@ -11,7 +11,7 @@ import java.util.function.Predicate;
 
 @Environment(EnvType.CLIENT)
 @RequiredArgsConstructor(access = AccessLevel.PACKAGE)
-class GuiProviderRegistration {
+final class GuiProviderRegistration {
 
     private final Predicate<Entry<?>> predicate;
     @Getter(AccessLevel.PACKAGE)

src/main/java/me/lortseam/completeconfig/gui/cloth/GuiRegistry.java

@@ -25,7 +25,7 @@ import java.util.function.Function;
 import java.util.function.Predicate;
 
 @Environment(EnvType.CLIENT)
-public class GuiRegistry {
+public final class GuiRegistry {
 
     public static <T, A extends AbstractConfigListEntry> A build(Function<ConfigEntryBuilder, FieldBuilder<T, A>> builder, boolean requiresRestart) {
         FieldBuilder<T, A> fieldBuilder = builder.apply(ConfigEntryBuilder.create());