Update chain_app.py

chain_app.py

@@ -846,13 +846,13 @@ async def on_chat_start():
             content='Im one of the best open source models that cohere released. i am configured by 2 iranian boys named Artin Daneshvar and Sadra Noadosut to help you out!'
         ).send()
 
-    if chat_profile == 'Command-Nigtly':
+    if chat_profile == 'Command-Nightly':
         await cl.ChatSettings(
             [
                 Select(
                     id="Cohere-Model",
                     label="Cohere - Model",
-                    values=["Command-Nigtly"],
+                    values=["Command-Nightly"],
                     initial_index=0,
                 ),
                 Slider(
@@ -869,7 +869,7 @@ async def on_chat_start():
             content='Im one of the best open source models that cohere released. i am configured by 2 iranian boys named Artin Daneshvar and Sadra Noadosut to help you out!'
         ).send()
 
-    if chat_profile == 'Command-Light-Nigtly':
+    if chat_profile == 'Command-Light-Nightly':
         await cl.ChatSettings(
             [
                 Select(