[Feature] Add gRPC reverse proxy support for OpenResty/NGINX

1Panel Version

2.0.17

Please describe your needs or suggestions for improvements

The current reverse proxy feature only supports proxy_pass, which can be limiting in certain applications because NGINX and OpenResty only support the HTTP/1.1 protocol for proxy_pass. On the other hand, gRPC runs over HTTP/2, and NGINX actually provides a module to proxy gRPC traffic, which can be used by simply changing a few proxy_pass configurations to grpc_pass. More information regarding how to configure gRPC reverse proxy on NGINX or OpenResty can be found here: https://nginx.org/en/docs/http/ngx_http_grpc_module.html#grpc_pass.
I think this could be a valuable feature to add. I'm currently doing this by manually editing the reverse proxy configuration file, which works fine but isn't very convenient. Thanks again for creating this fantastic Linux panel :)

Please describe the solution you suggest

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Additional Information

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