[Feature] Add params config for api server web_ui

[amulil]

Motivation

the current api server web demo is simple, I want to change some params on the web.

Modification

Just add three new params top_p、temperature、Maximum new tokens(request_output_len in the code)

Checklist

1. Pre-commit or other linting tools are used to fix the potential lint issues. —— Already run.
2. The modification is covered by complete unit tests. If not, please add more unit tests to ensure the correctness. —— I test the code change by changing the params value and then observe the model output, I think the output is right.

[AllentDan]

Hi, @amulil Sorry for the late reply. Would you mind making the same change to turbomind backend and triton server backend for the WebUI?

[RunningLeon]

LGTM

[RunningLeon]

Hope we can use same ui for gradio as the backend or as pure frontend.

[amulil]

Hi, @amulil Sorry for the late reply. Would you mind making the same change to turbomind backend and triton server backend for the WebUI?

OK, I will do it this weekend.

@AllentDan I finish it. And run pre-commit.

[AllentDan]

LGTM