add two dummy user replies depth>1

Author: andreaskoepf

backend/main.py

@@ -96,6 +96,20 @@ class DummyPost(pydantic.BaseModel):
                         text="Hello! How can I help you?",
                         role="assistant",
                     ),
+                    DummyPost(
+                        task_post_id="3d5dc440",
+                        user_post_id="a8c01c04",
+                        parent_post_id="4a24530b",
+                        text="Do you have a recipe for potato soup?",
+                        role="user",
+                    ),
+                    DummyPost(
+                        task_post_id="643716c1",
+                        user_post_id="f43a93b7",
+                        parent_post_id="4a24530b",
+                        text="Who were the 8 presidents before George Washington?",
+                        role="user",
+                    ),
                     DummyPost(
                         task_post_id="2e4e1e6",
                         user_post_id="c886920",