New component to search senior (see #12). Enhance responsiveness and solve #10 and #11

src/api/getSeniorList.ts

 import axios from 'axios';
+import { camelizeKeys } from 'humps';
 import { ResponseProps } from './ResponseProps';
 
 export const getSeniorList = async (name: string): Promise<ResponseProps[]> =>
   axios
     .get(`/api/web/seniors/by_name/${name}?fields=user,id`)
-    .then((res) => res.data);
+    .then((res) => camelizeKeys(res.data) as ResponseProps[]);