Merge pull request #255 from manNomi/fix/university_img

fix: university 이미지 깨짐 문제 수정했습니다

Author: manNomi

src/app/university/[id]/UniversityDetail.tsx

@@ -22,7 +22,7 @@ const UniversityDetail = ({ university }: UniversityDetailProps) => {
       <div className="relative h-[236px] w-full bg-blue-100">
         <Image alt="대학 이미지" src={convertImageUrl(university.backgroundImageUrl)} fill className="object-cover" />
       </div>
-      <div className="-mt-[66px] rounded-t-3xl bg-white px-5">
+      <div className="z-30 -mt-[66px] rounded-t-3xl bg-white px-5">
         <TitleSection
           title={university.formatName}
           subTitle={university.englishName}