fix npe

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_13to1_12_2/ChatRewriter.java

@@ -139,17 +139,21 @@ public class ChatRewriter {
             if (newTranslate != null) {
                 ((TranslatableComponent) component).setTranslate(newTranslate);
             }
+            if (((TranslatableComponent) component).getWith() != null) {
                 for (BaseComponent baseComponent : ((TranslatableComponent) component).getWith()) {
                     processTranslate(baseComponent);
                 }
             }
+        }
         if (component.getHoverEvent() != null) {
             for (BaseComponent baseComponent : component.getHoverEvent().getValue()) {
                 processTranslate(baseComponent);
             }
         }
+        if (component.getExtra() != null) {
             for (BaseComponent baseComponent : component.getExtra()) {
                 processTranslate(baseComponent);
             }
         }
+    }
 }