Change cwd in app to avoid overriding files

app.py

@@ -4,6 +4,8 @@ This ties together the different parts of the app.
 
 """
 
+import os
+import shutil
 from pathlib import Path
 from tempfile import mkdtemp
 from typing import Literal
@@ -15,6 +17,13 @@ from edit import edit_input_form
 from start import start_input_form
 
 
+# Change cwd to a temporary path
+if "work_dir" not in st.session_state:
+    work_dir = Path(mkdtemp(prefix="skops-"))
+    shutil.copy2("cat.png", work_dir / "cat.png")
+    os.chdir(work_dir)
+    st.session_state.work_dir = work_dir
+
 # Create a hf_path, which is where the repo will be created locally. When the
 # session is created, copy the dummy cat.png file there and make it the cwd
 if "hf_path" not in st.session_state: