[Misc] Improve Web UI (vllm-project#10090)

Signed-off-by: Rafael Vasquez <rafvasq21@gmail.com>

Author: rafvasq

docs/source/_static/custom.js

@@ -8,7 +8,7 @@ document.addEventListener("DOMContentLoaded", function () {
     script.setAttribute("version", "stable");
     script.setAttribute("runllm-keyboard-shortcut", "Mod+j"); // cmd-j or ctrl-j to open the widget.
     script.setAttribute("runllm-name", "vLLM");
-    script.setAttribute("runllm-position", "BOTTOM_RIGHT");
+    script.setAttribute("runllm-position", "BOTTOM_LEFT");
     script.setAttribute("runllm-assistant-id", "207");
 
     script.async = true;