Replace chicken 🐔 with sheep 🐑 (baby lamb) in the animal picker

Updated both ANIMAL_EMOJIS (app.py) and ANIMAL_MAP (image_generator) in sync.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

app.py

@@ -23,7 +23,7 @@ ANSWERS_PER_LEVEL = 5
 ANIMAL_EMOJIS = [
     "🐶", "🐱", "🐰", "🐭", "🦊", "🐺",
     "🐻", "🐼", "🐨", "🦁", "🐯", "🐷",
-    "🐮", "🐴", "🐔", "🐸", "🦦", "🐧",
+    "🐮", "🐴", "🐑", "🐸", "🦦", "🐧",
     "🐙", "🦋", "🐝", "🐞", "🦄", "🐉",
 ]
 PLACE_EMOJIS  = [   # 18 places → renders as 3 rows of 6

image_generator.py

@@ -169,7 +169,7 @@ ANIMAL_MAP: dict[str, str] = {
     "🐭": "baby mouse",    "🦊": "baby fox",      "🐺": "baby wolf",
     "🐻": "baby bear",     "🐼": "baby panda",    "🐨": "baby koala",
     "🦁": "baby lion",     "🐯": "baby tiger",    "🐷": "baby pig",
-    "🐮": "baby cow",      "🐴": "pony",          "🐔": "chicken",
+    "🐮": "baby cow",      "🐴": "pony",          "🐑": "baby lamb",
     "🐸": "baby frog",     "🦦": "baby otter",    "🐧": "baby penguin",
     "🐙": "baby octopus",  "🦋": "butterfly",     "🐝": "bee",
     "🐞": "ladybug",       "🦄": "unicorn",       "🐉": "baby dragon",