enhance: set the open-webui only run on localhost (#192)

Author: xiangyang-95

usecases/ollama/serve.sh

@@ -37,7 +37,7 @@ start(){
 
     ./ollama serve &
     P1=$!
-    open-webui serve &
+    open-webui serve --host 127.0.0.1 &
     P2=$!
 
     while ! service_is_ready; do