added all returns for modes on input_text

app.py

@@ -133,9 +133,9 @@ def bot_comms(input_text: str,
 
     if input_text == "mode":
         if llm_mode == "":
-            yield "The mode is currently at Loki Default mode"
+            return "The mode is currently at Loki Default mode"
         else:
-            yield f"The current mode: {llm_mode}"
+            return f"The current mode: {llm_mode}"
 
     if input_text == "check cuda":
         cuda_info = check_cuda()