Update app.py

app.py

@@ -112,7 +112,7 @@ SAMPLES_FOR_DISPLAY = []
 
 if os.path.isdir(EXAMPLES_DIR):
     try:
-        for i in range(1, 4):
+        for i in range(1, 5):
             sample_name = f"sample{i}"
             img_path = os.path.join(EXAMPLES_DIR, sample_name, "rgb.jpg")
             json_path = os.path.join(EXAMPLES_DIR, sample_name, "measurements.json")