Options object could be completely replaced with url

[RashJrEdmund]

Instead of having to write

  import {HttpClient} from "@orashus/http-client";

   const authHC = new HttpClient({
      base_url: ["auth"],
    });

developers could have the possibility of just using one parameter of type string | string[] which will default to the base_url
Like so!

  import {HttpClient} from "@orashus/http-client";

   const authHC = new HttpClient("auth");