style: MainHeader items-center 적용

Author: junjeeong

src/components/header/MainHeader.tsx

@@ -3,7 +3,7 @@ import LoginButton from "../button/LoginButton";
 
 const MainHeader = ({isLoggedIn}: {isLoggedIn : boolean})=> {
   return (
-    <header className="bg-white flex h-[56px] w-full justify-between px-5">
+    <header className="bg-white flex h-[56px] w-full justify-between items-center px-5">
       <Link to="/" className="flex items-center">
       <img
         src="/public/icon/mbtipslogo.svg"